Cooking instruction is a term used to describe the instructions given to prepare food. The three most common cooking instructions are 'HEAT, ' 'STIR, ' and 'BOIL.' HEAT is the process of applying HEAT to food in order to cook it. Stirring is the process of mixing ingredients together in order to combine them. Boiling is the process of heating a liquid until it reaches its boiling point. All three of these instructions are essential for preparing food properly.