Make 1 box cake mix according to directions on package - adding 1 bottle of red food coloring in 2 10" round cake pans.
Cool completely. Wrap with saran wrap & freeze until firm. (This will make it easier to cut into thin layers).
2RED & BLUE CAKES:
Make the other box cake mix according to directions on package. Reserve 3 cups (white). Add the other 1/2 bottle of red food coloring to remaining cake mix.
Color the reserved white mix with the blue food coloring. Gently fold in the white star sprinkles.
In 1 10" round cake pan, pour 1/2 of the red cake. In the other 10" round cake pan, place a 6" round cake pan (centered). In the 6" round cake pan, pour the blue cake mix in. In the outside layer, add the red cake mix in.
Bake according to directions on package. Cool completely. Wrap with saran wrap & freeze until firm. (This will make it easier to cut into thin layers).
3WHITE BUTTERCREAM FROSING:
Make or buy your favorite buttercream frosting for about 4 - 6 cups. It's better to have too much than too little.
4SLICING LAYERS & ASSEMBLY:
Before starting, you should have:
3 Full 10" Round Red Cake Layers
1 10" Round (Circle) Red Cake Layer
1 6" Round Blue Cake Layer with White Star Sprinkles
Only bring out of the freezer 1 red cake layer at a time. Cut each red cake layer in 1/2. Each layer you cut, add a thin layer of white frosting.
So you should have about 6 layers of full red cake layered with white frosting. And 2 round circle layers of red cake. DO NOT CUT BLUE CAKE!!!!!!
So you should have 8 layers of red, 7 layers of frosting & 1 full blue layer cake in center (see picture). Decorate outside of cake as desired.
5NOTE: For the white star sprinkles, go to: intercoursepretzelfactory.com/sprink... & go down to Red, White & Blue Star Ssprinkles & get 3 bottles ($2.50 each) & seperate all the white from the rest. The red & blue stars can be used to decorate the outside, if desired.