Velveting Marinade Ratio (Egg White to Cornstarch to Shaoxing to Salt)

1

Egg white — Provides albumin proteins that coagulate and form the protective film; do not use yolk, which adds fat that interferes with the gel structure

1

Cornstarch (or potato starch) — Starch granules swell when heated in the presence of egg white moisture, thickening the coating and creating the silky mouthfeel; potato starch yields a slightly firmer texture

0.5

Shaoxing rice wine — Provides aromatic depth and helps tenderize slightly via alcohol; dry sherry is a usable substitute; omit for alcohol-free

0.25

Salt — Seasons the protein while pulling very slight surface moisture that helps the coating adhere

Slice protein (chicken breast, beef, pork, shrimp) thinly and uniformly — 3–5 mm thick strips, cut against the grain for meat. Beat egg white lightly with a fork until just loosened but not foamy (foam creates uneven coating). Combine egg white, cornstarch, Shaoxing wine, and salt; stir until smooth. Add sliced protein and toss to coat evenly. Marinate 20–30 minutes at room temperature, or up to 2 hours refrigerated. To velvet: heat oil to 90–110°C (roughly 190–230°F) in a wok — far below smoking point. Add protein in a single layer and gently separate pieces. Blanch for 30–60 seconds until just barely opaque; drain. Alternatively, blanch in barely simmering salted water for the same time (the water-velveting method, 水滑). Proceed immediately to stir-fry in a smoking-hot wok — the pre-cooked protein finishes in under 60 seconds.

• Oil velveting requires precise temperature control — too hot (above 130°C) and the cornstarch coating fries before the protein sets; too cool and the coating slips off. Use a thermometer.
• Water velveting (the home-friendly method) is nearly identical in result and eliminates the challenge of managing large quantities of oil; use barely simmering, well-salted water.
• Do not rinse the protein after velveting — the thin gel layer is what you worked to build; patting briefly to remove excess oil (if oil-velveted) is sufficient.
• Beat the egg white just until fluid, not until foamy — air bubbles in the coating will burst during high heat and leave pockmarks.
• The same technique applies to tofu: press firm tofu, cut into strips, dip in a cornstarch-and-egg-white slurry, and water-blanch before stir-frying.

• Baking soda velveting

  For tougher cuts (flank steak, pork shoulder): replace egg white with 0.5 tsp baking soda per 250 g meat, mixed into water with cornstarch; rest 15 minutes only — longer causes mushy texture; rinse well before cooking

• Cornstarch-only velveting

  Egg white omitted; use 1.5 parts cornstarch to 0.5 parts Shaoxing and a few drops of water; produces a slightly crispier exterior, used for some Cantonese deep-fried preparations

• Soy sauce velveting

  Add 0.5 parts light soy sauce; colors the protein more deeply, commonly used for beef with broccoli or oyster sauce dishes

• Seafood velveting

  Shrimp and scallops require a lighter touch — reduce egg white to 0.5 parts and cornstarch to 0.5 parts; add a pinch of white pepper; blanch in water (not oil) only 20 seconds

• Stir-Fry Sauce Ratio (Soy to Oyster Sauce to Cornstarch)

  The sauce that coats the velveted protein at the finish of the stir-fry

• Tempura Batter Ratio

  Japanese analog: a loose starch coating applied before high-heat frying to protect protein texture

• Adobo Marinade Ratio

  Different culinary tradition; shares the same dual purpose of flavoring and textural protection before cooking

1. 1.The Wok: Recipes and Techniques — J. Kenji López-Alt
2. 2.Every Grain of Rice: Simple Chinese Home Cooking — Fuchsia Dunlop
3. 3.Land of Plenty: A Treasury of Authentic Sichuan Cooking — Fuchsia Dunlop

Confidence: high