How do you double cake on purble place?

To double a cake on Purble Place, you will need to:

1. Start by making a basic cake recipe.

2. Once the cake is baked, cut it in half horizontally so you have two layers of cake.

3. Spread a layer of frosting between the two layers of cake.

4. Frost the sides of the cake with frosting.

5. Top the cake with decorations of your choice.