Food can be cooked using a variety of methods .let's look at some of the ways to cook.yon can boil food (like rice) by covering it with liquid and setting it the the heat to make the liquid roll with bubbles. Sometimes,you steam food,by putting it in a basket above boiling water. Another method is to poach,where the food stays on the surface of gently boiling water. Poaching is ofr delicate foods,like eggs or fish,whuch might fall apart.