miniscule cookies

How Long Does It Take For An Easy Bake Oven To Heat Up? 1. Plug in your eASY-bAKe® Ultimate oven, and turn it on. Preheat for 20 minutes. How long did Easy Bake ovens take to cook? Bake in [Easy-Bake] oven for 15 to 20 minutes. How long do Easy Bake ovens take to cook?