Why do we rely so heavily on recipes? Following them works, but cooking without one feels like pulling from a mystery box. After leaving my tech job and taking over the kitchen for six months, I used Grok, Muse, and Dots, combined with my own practice, to deconstruct cooking as an engineering problem. This article summarizes 22 underlying principles of cooking, helping you achieve "no recipe in hand, but the logic in your heart," reaching chef-level intuition!
0 | Origin: Mid-Life Career Change, Reclaiming the Wok
In April this year, I officially left Huawei.
After eight years of intense work at my previous company, I had some savings. Living in Changsha, where housing prices are relatively low, I calculated that I had enough buffer room. So, I decisively chose to become a "freelancer."
I gave my mother-in-law formal notice to take a long vacation, returning her to the countryside where she had lived for decades and felt more comfortable.
Naturally, the responsibility of preparing three meals a day for the family fell on my shoulders. We couldn't let my wife and child eat takeout every day; it's not just expensive, it's bad for health.
Six months passed quickly. My freelance exploration hasn't made huge strides, but my cooking skills have improved slightly. Since having our daughter Qiqi, my mother-in-law moved to Changsha to help care for her, and due to work busyness, I hadn't picked up a spatula in years. Now, I had to "take over the kitchen."
From strictly following every step of a recipe for each dish, to occasionally "going off-script" and improvising, I gradually grew into a somewhat confident "home cook."
Of course, I still can't call myself a "chef." I think it's because I'm still too dependent on recipes and haven't fully mastered the underlying principles of cooking.
- Why do we cut beef and lamb against the grain, but pork with the grain?
- What scenarios correspond to hot wok/cold oil, hot wok/hot oil, and cold wok/cold oil?
- What is the effect of adding cooking wine or vinegar along the edge of the wok?
Thus, this article was born. I asked Grok Bot and Muse to help collect highly-rated cooking tips from Xiaohongshu (Little Red Book), referencing a long-form article on UI design, and organized them into a checklist format for myself and readers to learn from.
Just like UI design, once you master the basic underlying rules, cooking is no longer a terrifying gamble.
Happy reading!
1 | Preparation and Pre-processing
01 | Cut Beef/Lamb Against Grain, Pork With Grain
Why does meat sometimes get stuck in your teeth or feel tough to chew? The principle is simple: raw meat texture is essentially bundles of tight rubber bands. When heated, these bands contract tightly. If you cut along the direction of the fibers, the long bands remain intact, making them hard to bite through after cooking. Only by cutting perpendicular to the grain do you sever these bands into small segments, resulting in tender, easy-to-chew meat.
This is what old chefs mean by "cut beef/lamb against the grain, cut pork with the grain." Beef and lamb have coarse, tough fibers, so they must be cut against the grain to sever the fibers completely for tenderness. Pork has finer, softer meat, so cutting with or diagonally ensures slices don't break apart during stir-frying while maintaining a slight bounce.
02 | Separate Stems and Leaves, Add to Wok Sequentially
The biggest taboo in stir-frying is mixing ingredients that cook slowly with those that cook quickly. Heat transfer takes time; thicker items are harder to cook through. If you throw a mix of thick and thin vegetables into the wok all at once, the thick parts will be undercooked while the thin ones burn.
A classic example is garlic sprouts and celery. White stems are dense and need about a minute in a hot wok to soften; green leaves are delicate and cook in 30 seconds over high heat. Therefore, when prepping, separate hard stems and soft leaves into two piles and add them to the wok in sequence.
03 | Wash High-Starch Vegetables Before Stir-Frying
When slicing potatoes or lotus root, the blade breaks plant cells, releasing concentrated starch onto the surface. This surface starch acts like natural glue when it hits hot oil, sticking to the iron wok and burning black.
After slicing potato strips or lotus root, rinse them twice in clear water until the water runs clear, then drain. Without this surface starch layer, high-heat stir-frying yields crisp, translucent potato strips that don't stick to the pan.
04 | Dry Ingredients Before Adding to Wok
Water rapidly lowers wok temperature. Pouring wet vegetables or meat into hot oil causes splattering and drops the internal temperature drastically, destroying the non-stick oil film and turning stir-frying into boiling.
Drain moisture before cooking: shake off excess water from greens; pat meat dry with paper towels. For frozen meat, thaw completely beforehand. Don't overload the wok with too much wet, cold meat at once, as it crashes the temperature.
05 | Three-Step Marination for Tender Meat
Throwing raw meat directly into the wok causes moisture loss under high heat, resulting in tough, dry meat. To keep slices silky, lock in moisture before cooking.
Marinate in three steps: first, mix with a little salt to relax the muscle fibers; second, add scallion-ginger water or cooking wine in batches, kneading in one direction until absorbed; finally, coat with cornstarch until sticky, then seal with a little oil. The starch and oil form a protective barrier, preventing moisture loss during stir-frying.
06 | Tenderize Tough Beef with Kiwi
Old beef or thick steaks with lots of connective tissue are hard to tenderize with just marination and quick stir-frying.
When marinating, mash half a fresh kiwi (or add two spoons of fresh pineapple juice) and mix well, letting it sit for 15 minutes. Kiwis and pineapples contain natural proteases that break down tough collagen in beef, significantly improving tenderness.
07 | Blanch Meat Starting in Cold Water
Blood and impurities hide deep within bones and muscles. Proteins coagulate around 60°C. If you start with hot water, the meat surface contracts instantly, sealing pores and trapping blood inside, leading to tough, dark meat and cloudy, fishy broth.
Blanch meat starting in cold water: place chunks in cold water with scallions, ginger, and cooking wine, heating slowly over medium-low fire. As temperature rises, blood seeps out forming foam. Skim foam once boiling, remove meat, and wash with warm water. Avoid rinsing with cold water, which shocks the meat and makes it tough.
08 | Blanch Vegetables in Boiling Water
Vegetable blanching is opposite to meat. Greens turn yellow and soggy if boiled in lukewarm water for too long because oxidase enzymes break down chlorophyll.
Blanch vegetables in boiling water: once water boils vigorously, add a pinch of salt and a few drops of oil, then toss in greens for 15-30 seconds over high heat. Remove immediately when color brightens, and plunge into cold water. Salt and oil preserve color and crunch; cold water stops residual heat from overcooking.
2 | Heating the Wok and Starting
09 | Heat Empty Wok Thoroughly Before Adding Oil
Sticking meat or broken fish skin often isn't due to lack of oil, but insufficient wok temperature.
Proteins in raw meat adhere easily to cool iron woks. The key to preventing sticking is ensuring the wok bottom is thoroughly heated:
Heat the empty iron wok on high until it smokes slightly, then pour in cool oil and slide in the meat. Micro-moisture on the meat surface vaporizes instantly upon contact with the hot wok, creating tiny steam cushions that set the meat surface, preventing adhesion.
Common method: heat empty wok until smoking, add a little oil to coat walls, switch to low heat, then add ingredients. Core principle: the wok must be hot.
10 | Let Fish Form a Crust Before Flipping
When ingredients first hit the wok, surface proteins are still coagulating. Moving them now tears the skin or breaks the meat.
Don't rush to flip. Keep medium-low heat for tens of seconds, waiting for the surface to form a golden, slightly hardened crust. Once hardened, it naturally releases from the wok. Gently shake the pan; if the fish or meat slides freely, it's ready to flip.
11 | Cool Oil for Stickiness, Hot Oil for Moisture
Oil and wok temperature combinations depend on ingredient characteristics. For protein-rich items prone to sticking or drying out (shredded meat, eggs, fish), use hot wok/cool oil. A thoroughly heated wok prevents sticking; pouring in cool oil and immediately adding ingredients allows gentle sliding without overcooking.
For leafy greens, kidney flowers, or liver—items prone to releasing water and needing "wok hei" (breath of the wok)—use hot wok/hot oil. Both wok and oil are hot; stir-fry quickly over high heat to seal surface moisture instantly, preventing sogginess.
Test oil temperature by inserting a wooden chopstick; fine bubbles around it indicate readiness.
12 | Fry Peanuts in Cold Wok/Cold Oil
Peanuts and dried Sichuan peppercorns have almost no internal moisture. Dropping them into hot oil burns the exterior black and bitter while the interior remains raw.
Fry these dry ingredients in cold wok/cold oil: add oil, then peanuts, and fry slowly over low heat, stirring constantly. Gradual temperature rise allows even heat penetration, resulting in crispy, non-burnt peanuts.
13 | Sauté Aromatics in Hot Oil
Aromatic compounds in scallions, ginger, garlic, chilies, and peppercorns are mostly fat-soluble, requiring warm oil to release their scent.
When stir-frying, first sauté minced garlic and scallions in base oil over low heat until fragrant, then add main ingredients. Same logic applies to cold dishes: pour hot oil over minced garlic or chili flakes to activate aroma, then season with soy sauce and vinegar for better flavor.
3 | Cooking and Seasoning
14 | Low Heat for Clear Soup, High Heat for Milky Broth
Whether soup is clear or milky depends on whether fats emulsify with water.
For chicken or beef clear soups: blanch meat, place in clay pot with boiling water, bring to boil, then immediately reduce to lowest simmer. Surface should barely ripple. Fats float gently, keeping broth clear.
For crucian carp or bone-rich milky soups: pan-fry ingredients until golden on both sides, then pour in boiling water, maintaining vigorous boil throughout. Rolling water disperses fats and fuses them with proteins, creating creamy white broth.
15 | Slide Cook Meat, Remove, Then Combine
Meat and vegetables have different cooking times. Cooking together often results in overcooked meat and undercooked veggies.
Stir-fry meat dishes in stages:
Slide marinated meat slices in hot wok/cool oil until surface turns white (~80% cooked), then remove. Use residual oil to stir-fry vegetables until just tender, then return meat to wok for final seasoning and tossing. This keeps meat tender and veggies crisp.
16 | Add Salt to Greens Just Before Serving
Salt draws out moisture via osmosis. Leafy greens are water-rich; adding salt early causes massive water loss, making them soggy, yellow, and watery.
Add salt to leafy greens just before serving: stir-fry over high heat until wilted, then season right before plating. Salt stays on the surface providing flavor without extracting internal water, preserving crunch.
Meat is opposite. Dense muscle needs salt earlier (during marination) to penetrate; late salting leads to salty outside, bland inside.
17 | Splash Cooking Wine Along Wok Edge
Cooking wine removes gaminess by evaporating alcohol, carrying away odor molecules.
Add wine when wok temperature is highest, splashing it along the hot rim. Intense heat vaporizes alcohol quickly, removing smells. If added directly to cooler food, alcohol doesn't evaporate fully, leaving a sour, harsh taste. Vinegar follows same logic: splash on hot edge to volatilize raw acidity, retaining aroma.
18 | Add MSG/Oyster Sauce After Turning Off Heat
MSG and chicken essence lose umami potency under prolonged high heat. Oyster sauce contains sugars and thickeners that burn and turn bitter if overheated.
Add chicken essence, MSG, and oyster sauce after turning off heat or just before plating. Residual warmth dissolves them, maximizing umami without destroying flavor profiles.
19 | Deglaze Burnt Bits with Water
Late in stir-frying meat, moisture evaporates, leaving thin brown residue on wok bottom. This isn't sticking; it's dehydrated protein from juices adhering to metal.
Don't scrape hard. Splash a spoonful of warm water or cooking wine along the edge. The liquid dissolves the caramelized bits, turning them into a glossy sauce coating the meat, cleaning the wok and enhancing savory depth.
20 | Light Soy for Salt, Dark Soy for Color
Messy seasoning comes from unclear roles. Home seasonings have distinct jobs: Light soy provides salty umami base; Dark soy adds color (low salt, use sparingly); Oyster sauce adds sweetness and body; MSG/chicken essence boost umami; White pepper suits light dishes/soups; Black pepper fits rich meats; Doubanjiang creates red oil/color; Tiny sugar balances spicy/salty notes.
Standard ratio for braised/stir-fried meat: Light Soy : Oyster Sauce : Dark Soy ≈ 2 : 1 : 0.5. Two spoons light soy for base, one oyster for umami/body, half dark soy strictly for color accent. Too much dark soy turns black/bitter. Knowing targets prevents chaos.
4 | Finishing and Going Off-Script
All recipes and principles exist to enable going off-script. Here’s how to maintain high standards without them.
21 | Judge Doneness by Ingredient Signals
Stove power, wok thickness, and initial ingredient temp vary, so rigid "cook for X minutes" instructions fail.
Observe physical changes instead:
- Leafy greens: wilted, shrunk ~1/3, deep green = done.
- Shredded/sliced meat: surface fully white (red gone) = cooked; longer = tough.
- Braised meats/root veg: chopstick pierces easily without resistance = tender.
- Steamed fish: eyes bulge/whiten, skin splits at thickest back part, flesh separates from bone = done; over-steaming = tough.
22 | Master Three Structural Skeletons
While countless recipes exist, home cooking flows follow three basic skeletons.
- Veggie Stir-fry: Hot lard/oil (lard is tastier) -> sauté aromatics low -> add main veg high heat until soft -> salt + oyster/MSG just before serving.
- Meat Stir-fry: Slice correctly (grain aware) -> marinate (water/starch/oil) -> slide cook in hot wok/cool oil -> remove -> stir-fry veg -> return meat -> season/toss.
- Clear Soup/Braise: Cold water blanch -> skim foam -> rinse warm -> clay pot + boiling water -> low simmer until tender -> salt at end.
Master these structures, adjust ratios to taste, and cook confidently without panic.
5 | Practical Demo: Reconstructing Hunan "Chili Fried Meat"
Let's apply these 22 principles to a classic Hunan farmhouse stir-fry.
1. Prep & Pre-process (Principles 01, 04, 05)
Buy front leg pork with balanced fat/lean. Separate cuts.
Slice lean meat with grain (pork rule) thinly. Pat dry. Marinate: salt -> scallion-ginger water/wine (knead in) -> cornstarch -> seal with oil. Slice fat separately for rendering.
Wash/dry screw peppers or line peppers. Cut diagonally into ear-shaped segments.
2. Dry-Fry Peppers (Principles 04, 11)
Clean wok, no oil. Add peppers. Medium-low heat, press gently.
Goal: Evaporate surface moisture and raw vegetal smell. Wait for slight blistering/tiger-skin spots. Remove. Pre-drying prevents later sogginess, keeping crunch.
3. Heat Wok & Render Fat (Principles 09, 13)
Heat empty wok thoroughly. Add fat slices. Low heat, slow render clear lard.
When fat curls/browns, add smashed garlic and fermented black beans. Sauté in hot oil until fragrant.
4. Slide Meat, Combine, Season (Principles 11, 15, 17, 20)
High heat. Slide in marinated lean meat. Toss fast.
When surface turns white (~80%), add fried peppers back. Splash cooking wine along hot rim. Season: 2 spoons light soy, 1 oyster, 0.5 dark soy. Toss to coat.
5. Finish & Serve (Principles 16, 18, 21)
Taste. Add pinch salt just before serving (prevents pepper dehydration). Turn off heat. Sprinkle chicken essence. Toss with residual warmth. Plate.
Result: Bright red clear oil, no watery mess. Silky meat, crisp fragrant peppers. Total time: 6-7 mins.
6 | Conclusion: Reframe Cooking as Engineering
Delicious home cooking relies on fundamental principles, not mystical intuition. Chefs don't need recipes because they have the logic internalized.
Mastering physics and common sense makes cooking controllable.
- Prep: Cut fibers, wash starch, dry moisture, seal with starch/oil.
- Heat: Thoroughly heat wok, wait for crust, match oil temp to ingredient.
- Cook: Control heat for soup clarity, stage meat/veg, salt greens late, splash wine hot, add umami agents off-heat.
- Finish: Read ingredient signals, use structural skeletons.
To build certainty, establish prep habits before firing up. Chop aromatics, marinate meat, drain veggies. Then cook with confidence.
