Beef and broccoli stir-fry

Cut the steak into chunks, turn each sideways and slice against the grain for the shortest muscle fibres.

Marinate the beef with oyster sauce, soy sauce, white pepper, one egg white and cornstarch; do this first so it has time to sit.

Cut the broccoli along its natural separations, then cut each piece to give a flat surface for searing, down to bite size.

Mix the sauce ahead: oyster sauce, Golden Mountain sauce, fish sauce, a little water, sugar, black pepper and the finely chopped garlic.

Heat oil very hot in a flat skillet; sear the broccoli cut side down in batches until browned, flip, then turn off while still partly cooked.

Add more oil to coat the bottom, spread the beef in one batch and sear until most pieces are browned; toss once.

Add the broccoli and the sauce and toss until the beef is cooked, adding a splash of water if dry. Serve with rice.