Given the task definition and input, reply with output. In this task, you will be presented with the directions of a recipe separated by "," and have to fill in the "___" which is a step that is missing from the recipe.

Heat a wok or large frying pan until smoking hot.,Pour in the oil and swirl around the pan, then tip in the beef strips and chili.,Cook, stirring all the time, until the meat is lightly browned, about 3 mins, then pour over the oyster sauce.,______,stir in the basil leaves and serve with plain rice.
Cook until heated through and the sauce coats the meat.