Hold your knife at a slight angle (about 45°) to create wider, flatter slices. Slice against the grain into thin pieces (about ⅛-inch thick).
Transfer to a mixing bowl.
Season and tenderize:
Add soy sauce, water, sugar, baking soda (if using), salt, oil, and white pepper.
Gently mix and massage until the chicken absorbs the liquid and looks slightly glossy and sticky.
Add starch:
Sprinkle in the starch and mix again until evenly coated. The chicken should feel lightly tacky, not watery.
Let it rest for 10–15 minutes at room temperature, or refrigerate while you prep other ingredients.
Stir-fry the chicken:
Heat a large pan or wok (12-inch) over medium heat until hot (you should feel heat when holding your hand 2–3 inches above the surface).
Add oil and swirl to coat. The oil should shimmer but not smoke.
Add the chicken and turn heat to medium-high. Spread into a single layer. Cook undisturbed for 2–3 minutes, until lightly golden on one side.
Flip and cook for another 1 minute or so, until just cooked through.
Remove and use:
Transfer out immediately. The chicken should be tender, juicy, and lightly seasoned. Ready to combine with vegetables or sauce.
Video
Notes
Make-ahead: Velvet the chicken and store it raw in an airtight container in the fridge for up to 2 days.
Freeze: Velvet the chicken and store it raw in a freezer-safe bag in a flat layer. Freeze for up to 2 months.
Defrost: Thaw the chicken overnight in the refrigerator before cooking. The version without baking soda uses a bit more water to help rehydrate the chicken, slightly more sugar to support browning, and a little extra starch to lock in that added moisture.
If using coconut aminos, here is the ratio:
1 lb. chicken breast, thinly sliced
1 tbsp coconut aminos
½ tsp baking soda
¼ tsp coarse sea salt
2 tbsp olive oil
⅛ tsp white pepper, or black pepper
1.5 tsp tapioca starch, or potato starch, or cornstarch