Best beef stir-fry recipe

Ingredients

• 200g topside or rump steak, thinly sliced
• 3 tbsp vegetable oil
• 1 large bunch (or 2 small bunches) of asparagus, sliced on a steep diagonal
• ½ brown onion, thickly sliced
• 2 cloves garlic, roughly chopped
• 1cm ginger, peeled and sliced into very thin matchsticks
• 1 tbsp Shaoxing wine
• 1 tbsp soy sauce
• 1 tbsp oyster sauce
• 1 tsp sesame oil
• ¼ tsp sugar
• 1 tsp cornflour mixed with ¼ cup cold water