When you are baking apples, you want to make sure you are using baking apples. Some apples will get mushy when they are baked, and some apples will stay hard when they are baked. Baking apples will break down nicely but not too much. The best baking apples are Granny Smith apples. You can also use Honeycrisp apples, Gala apples or Golden Delicious apples. Choose the apple you prefer by deciding what texture you want as well as if you want something sweet or tart in the mixture.