This general ombre (layered color) concept could be done lots of different ways, and with most any color scheme. I’ll lay out the steps I used to make these mini cakes, but feel free to adjust the process for different sized cakes, or according to your ideas and preferences.
~ How to make Purple Ombre Mini Cakes ~
1. Prepare vanilla cake batter, using a box mix or a scratch recipe.
My notes ~ I have a great go-to vanilla cake/cupcake recipe, but this time I used a box mix (Betty Crocker French Vanilla). I mixed up TWO box mixes, and then had enough batter left over for 12 cupcakes. Depending on the size pans you use for the purple layers, you could probably accomplish this with only one box mix (or batter that makes about 24+ cupcakes).
2. Divide the batter into 4 bowls and color as desired.
My notes ~ If you have 4 of the same sized round baking pans, then each bowl of colored batter should have equal amounts in it. I don’t have 4 of the same size, so I used 2-8″ pans and 2-9″ pans. Because of this, I put 1 cup of batter in two bowls, and 1.5 cups of batter in two bowls, colored it as desired, then poured the smaller (1 cup amount) of batter into the 8″ pans, and the 1.5 cups of batter into each 9″ pan. For the colors shown, I used Americolor Regal Purple and Electric Purple. I added one full drop of each color in the darkest batter, and used less than a drop (a small amount on a toothpick) for the other layers.
3. Pour batter into prepared baking pans (pans should be oiled, floured, and lined on the bottom with parchment paper).
4. Bake as directed by recipe. Cool cakes on cooling rack. Remove cake from pans, and move to a cutting surface. Level the cakes (cut off the top dome), as needed.
5. Use a round cookie cutter to cut circles of cake from each layer.
My notes ~ I used a 2 3/4″ cookie cutter and I was able to make 4 mini layer cakes (as shown), with cake scraps left over. I think if you used a 2 1/2″ cutter, and baked all your batter in 9″ (round) cake pans, you would be able to make 5 mini layer cakes.
6. Layer cakes as desired, piping a swirl of frosting between each layer. Frost the tops of the cakes as desired.