Easy Bake mixes are expensive, and I've been less than satisfied with using cake mixes and water. Then I found muffin mixes, which are complete except for adding milk or water. The results are much more cake-like in texture. The mixes come in pouches near the cake mixes, and at my store are brands such as Betty Crocker, Martha White, and the store brand. Just make sure to use a mix that only calls for adding milk or water.