Several things can be at play here: Make sure your oven or pizza oven has reached the required temperature. If using a regular oven, it helps to have an oven thermometer to check. Pizza is meant to cook quickly at a high heat. Roll out your dough as thinly as you can; a thin dough cooks quicker and more completely than a thicker layer. Do not over load your pizza with sauces and toppings. A light layer of sauce is all that's needed, and keep toppings to a minimum to allow the dough to cook thoroughly. Less is more with homemade pizza!