A ceramic bowl of thin raw chicken breast strips coated in a smooth, milky-white marinade, with wooden chopsticks lifting one strip clear of the bowl. Beside it sit a small dish of cornstarch, a cracked eggshell half, a folded striped cloth napkin, and a sprig of parsley.

velveting

Also known as: velvet, velveting meat

A Chinese restaurant technique that wraps thin slices of lean protein in a starch coating before they hit high heat, so they come out tender and silky instead of dry and stringy. It suits anything lean enough to overcook in seconds -- chicken breast, pork loin, lean beef, shrimp, delicate white fish. Velveting is really two decisions made in order: which coating to put on, and how to cook the coated pieces once it is on.

How to do it

The coating and the cooking are separate choices, and either coating works with any of the three cooking methods -- so pick one from each group below rather than reading them as a single sequence. Slicing comes first either way, and nothing further down rescues a piece cut too thick. Done right, the finished pieces are plump and opaque with a faint sheen, slippery rather than slimy to the touch, and they give easily under a chopstick; a piece that squeaks against your teeth or feels rubbery has been over-treated, not under-cooked.

First, whichever coating you choose: slicing

Firm the protein up before cutting it -- 20-30 minutes in the freezer takes the wobble out of a chicken breast or a piece of steak and makes thin, even slices possible with an ordinary knife.
Find the grain, the fine parallel lines running along the surface of the muscle, and turn the piece so the knife crosses them at a right angle. Cutting across the grain shortens the muscle fibres, and that is most of why a lean cut ends up tender. Shrimp and fish fillets have no grain to find, so skip this for them.
Slice about 5 mm / 1/4 inch thick, and prioritize even thickness over neat shapes. No coating saves a thick piece: the outside is done long before the middle, which is the exact problem velveting exists to prevent.
Pat the slices dry with paper towel. A wet surface dilutes whichever coating comes next and stops it clinging.

Coating option 1: egg white and cornstarch -- the classic silky finish

Choose this coating for protein that is already tender and only needs protecting -- chicken breast, shrimp, white fish. Quantities below are per 500 g / 1 lb.
Make the slurry first. Stir 1 tbsp cornstarch into 2-3 tsp cold water until it is completely smooth, with no dry pockets on the bottom of the bowl -- see cornstarch for why dry starch has to be wetted separately. Tipping the powder straight into the egg white instead gives lumps that never come out.
Break up 1 egg white with a fork, just until it loses its jellied structure and pours freely. It does not need to be foamy; whipping air into it makes the coating fluffy rather than smooth.
Stir the slurry into the egg white along with 1/2 tsp salt and, optionally, 1 tsp Shaoxing wine, dry sherry, sake, or dry white wine.
Add the protein and massage it by hand for about a minute, until every piece is coated and the mixture has gone from watery to just clinging. It should look as though the pieces were dipped in thin cream -- glossy, no liquid pooling in the bowl, no pasty patches.
Work in 1 tbsp neutral oil last, after everything else is combined. Adding it last is what keeps the pieces from welding into one block in the fridge and in the pan.
Cover and refrigerate 20-30 minutes, then pick a cooking method below. Chicken and pork can sit a few hours; do not leave shrimp or fish much past 30 minutes, since the salt begins to cure them.

Coating option 2: baking soda, then cornstarch -- for lean beef and tougher cuts

Choose this one when the cut itself is the problem -- lean beef, pork loin, older chicken -- since baking soda actually tenderizes rather than just coating. Quantities below are per 500 g / 1 lb.
Toss the sliced protein with 1 tsp baking soda until every surface is dusted. It will look unappetizingly chalky, which is correct.
Leave it 15-20 minutes for chicken or pork, 30-40 for beef. Longer is not more tender: past about 40 minutes the surface goes soft and mealy, and it does not come back.
Rinse thoroughly under cold running water, working the pieces apart with your fingers for a good 15-20 seconds, then pat them properly dry. Do not shortcut this. Baking soda left on the surface tastes soapy and faintly metallic, and no amount of sauce hides it.
Now coat the rinsed pieces. Stir 1 tbsp cornstarch into 2-3 tsp cold water until smooth, then mix it into the protein along with 1 tbsp soy sauce (or 1/2 tsp salt) and 1 tsp Shaoxing wine or dry sherry if using.
Work in 1 tbsp neutral oil last, as with the egg-white coating, and refrigerate 20-30 minutes before cooking.
There is a no-rinse shortcut that uses far less soda -- about 1/4 tsp per 500 g, mixed straight into the cornstarch coating and cooked within the half hour. It tenderizes noticeably less, and it turns soapy quickly if the soda is measured generously or the bowl is forgotten in the fridge.

Then cook it, option 1: water velveting -- the one to start with

Bring a wide pan of water to 85-90 C / 185-195 F: steam coming off, a few bubbles wandering up from the bottom, the surface barely moving. A wide pan rather than a deep pot, so the pieces can lie in one layer.
Add 1 tsp neutral oil to the water if you like -- it helps the pieces slide apart instead of sticking to each other.
Slide the pieces in a few at a time, separating them with chopsticks as they go so they do not set into a clump.
Cook until the outside turns opaque and the pieces firm up slightly -- roughly 30-45 seconds for thin chicken, under a minute for most things. Pull them while the centre is still just underdone if they are going into a hot wok afterwards; cook them through only if they will be cooled and used later.
Lift them out with a slotted spoon and drain them well. Wet pieces steam instead of searing when they reach the wok.

Then cook it, option 2: oil velveting -- the smoothest result

Heat about 2-3 cm / 1 inch of neutral oil to 120-150 C / 250-300 F. This is far cooler than frying: a piece should sizzle quietly around its edges rather than bubble hard, and nothing should brown.
Use a thermometer. The window is narrow and there is no reliable visual cue at this temperature -- oil hot enough to shimmer has already gone past it.
Slide the pieces in and separate them gently with chopsticks. Work in batches, since a large cold batch drops the oil straight out of the window.
Cook 30-60 seconds, only until the coating sets and the surface turns opaque. The aim is to set the coating, not to cook the protein through.
Lift the pieces out with a spider or slotted spoon, drain them on a rack, and finish them in the stir-fry.
Let the oil cool, strain it, and keep it for next time -- reusing it is what makes this method practical rather than wasteful.

Then cook it, option 3: straight into the wok -- the fastest

Get the pan properly hot before any oil goes in: a flicked drop of water should skitter and vanish at once.
Add a tablespoon or two of oil, swirl it to coat, then lay the pieces out in a single layer with space between them.
Leave them alone for 20-30 seconds. Stirring straight away is the usual mistake -- the coating needs contact with hot metal to set, and stirred too early it smears off into the pan.
Stir-fry until the pieces are just cooked, then take them out of the pan and set them aside.
Cook in batches if they do not fit in one layer. A crowded pan drops below searing temperature and the protein steams grey.
Return the protein at the very end, once everything else is cooked and seasoned, and toss it just long enough to heat through.

Common pitfalls

Tipping dry cornstarch straight into the egg white or the marinade. It seizes into gritty lumps that stay lumps -- wet it into a smooth slurry with cold water first, every time.
Slicing too thick. The coating still sets, but the centre is raw when the outside is done, or grey by the time the centre is not, which is the problem velveting exists to solve.
Skipping the rinse after a full-strength baking soda treatment. The result is soapy and faintly metallic, and it cannot be fixed once cooked in.
Using extra baking soda to tenderize faster. Past a small amount it leaves that same soapy taste plus a springy, rubbery bounce -- worst on shrimp, which needs the least of it and the shortest time.
Leaving protein in baking soda for hours. It keeps softening for as long as it stays in contact, so the surface turns mushy well before it looks obviously over-treated.
Boiling the water hard during water velveting instead of holding a bare simmer. Moving water knocks the coating loose and toughens the exterior.
Overcrowding the wok, which drops the pan below searing temperature and steams the protein grey instead of searing it.
Stirring the instant the protein hits the wok, before the coating has had its 20-30 seconds against hot metal to set.
Timing shrimp and fish on the same clock as beef. Delicate protein turns mushy or falls apart long before a lean steak shows any effect at all.

Why it works

Two different mechanisms, depending on which coating was used. Egg white and cornstarch is a physical barrier: the egg white sets early in the heat while the starch granules swell and gel at around the same time, and together they seal the surface so the protein's own moisture stays inside instead of being driven out. That gelled layer is also what you are feeling when the result is called silky -- the slipperiness is the coating, not the meat. Baking soda works chemically, and on the protein itself: it raises the pH at the surface, which keeps the muscle proteins from bonding as tightly to one another as they cook, so they squeeze out less water and stay loose. That is also why it cannot simply be left on -- the reaction continues for as long as the soda is in contact, and past a point the surface proteins are loosened into mush rather than tenderness. The three cooking methods differ in margin rather than mechanism. Water and oil velveting both work well below searing temperature, which lets the coating set gradually while the interior comes up at a similar rate. A ripping-hot wok gives better flavour but leaves no margin at all: the exterior can overshoot in the few seconds the centre needs to catch up, which is why professional kitchens usually set the coating in water or oil first and bring the protein back to the wok only at the end.

Equipment

A sharp knife, and freezer space to firm the protein up for 20-30 minutes before slicing -- thin, even slices are the one non-negotiable. A wide pan rather than a deep pot for water velveting, so the pieces spread into a single layer. A frying or candy thermometer for oil velveting, since 120-150 C / 250-300 F has no reliable visual cue and sits well below the shimmer most people judge oil by. Chopsticks, a spider, or a slotted spoon for separating and lifting pieces out of liquid without dragging the coating off them. And a wok or a wide heavy skillet for the finish, whichever of the three methods you use.