Stir frying means that you’re cooking something quickly (usually veggies, protein or rice) with a little oil over very high heat. This Chinese cooking technique is popular because your ingredients cook rapidly without deteriorating. Vegetables are done in a flash while retaining a pliant crunch - and meats get a sear on the outside without overcooking and drying out. Also, since such little oil is used, it’s a great way to keep calories in check.