1. Prepare three 8 inch cake pans with parchment paper circles in the bottom and grease the sides. Preheat oven to 350°F (176°C) .
2. In a large mixing bowl, cream butter and sugar together until light in color and fluffy, about 3-4 minutes. Do not skimp on the creaming time.
3. Add sour cream and almond extract and mix until well combined.
4. Add egg whites in two batches, mixing until well combined after each. Scrape down the sides of the bowl as needed to be sure all ingredients are well incorporated.
5. Combine dry ingredients in a separate bowl, then combine the milk and water in a small measuring cup.
6. Add half of the dry ingredients to the batter and mix until well combined. Add the milk mixture and mix until well combined. Add remaining dry ingredients and mix until well combined. Scrape down the sides of the bowl as needed to be sure all ingredients are well incorporated.
7. Divide the batter evenly between the cakes pans and bake for about 21-23 minutes, or until a toothpick comes out with a few crumbs.
8. Remove the cakes from the oven and allow to cool for about 2-3 minutes, then remove to cooling racks to cool completely.

TO MAKE THE BUTTERCREAMS:

9. To make the cherry buttercream: In a large mixer bowl, beat the butter and shortening together until smooth.
10. Slowly add half of the powdered sugar and mix until smooth.
11. Add 4-5 tablespoons of cherry juice and mix until smooth.
12. Slowly add the remaining powdered sugar and mix until smooth. Add additional cherry juice, as needed.
13. Color the frosting with some additional pink icing color, if you like.
14. To make the vanilla buttercream: In a large mixer bowl, beat the butter and shortening together until smooth.
15. Slowly add half of the powdered sugar and mix until smooth.
16. Add vanilla extract and one tablespoon of water or milk and mix until smooth.
17. Slowly add the remaining powdered sugar and mix until smooth. Add additional water or milk as needed, as needed.

TO ASSEMBLE THE CAKE:

18. To put the cake together, use a large serrated knife to remove the domes from the top of the cakes so that they’re flat. Place the first cake on a serving plate or a cardboard cake round.
19. Spread about 1 cup of cherry frosting evenly on top of the cake.
20. Top the frosting with 1/4 cup of chopped cherries and press them into the frosting. Smooth out the icing and cherries with an offset spatula.
21. Add the second layer of cake and another cup of cherry frosting and 1/4 cup of chopped cherries.
22. Top the cake with the remaining layer and frost the outside of the cake. Refer to my tutorial for frosting a smooth cake, if needed, or watch the video above.
23. Use an offset spatula to create the stripes on the side of the cake. Watch the video above for guidance.
24. Use the vanilla buttercream to pipe swirls around the top of the cake. I used Ateco tip 844, but Wilton 1M or 2D would work as well.
25. Top the swirls with cherries and sprinkle the cake with some white pearl sprinkles, if desired.