Preheat the oven to 350 degrees. Line your cupcake pans with your choose of cupcake wrappers.

Place your self-rising flour, cake flour, and sugar in the bowl of your mixer. Mix them together for a minute or two until they are well combined.

Cut your butter into tablespoon pieces. Slowly add your butter into the flour mixture one piece at a time continue mixing until you have reached the texture of sand.

Pour half of your milk into the flour mixture and mix just until the milk is incorporated. Use your rubber spatula to scrape down the sides of your bowl. Add your remaining milk and the vanilla to your batter and mix until combined.

Slowly add in one egg at a time to the cake batter, making sure each egg is incorporated before adding the next egg.

Scoop the batter into the prepared cupcake pan, filling them 3/4 of the way full.

Bake for 10 minutes then rotate the cake pans so the pan that was on the top rack is now on the bottom and the pan that was on the bottom is now on the top rack. Continue to bake for another 10-13 minute until a toothpick comes out clean from the center of the cupcake.

Transfer the cupcakes to a cooling rack until they have reached room temperature.

Place butter and shortening together in the bowl of your mixer. On medium speed mix them together until it is all creamed together.

Turn the mixer to the lowest setting and slowly add the powdered sugar.

Once all the powdered sugar has been added and mixed well add the vanilla extract and hot water(if you need to thin out the buttercream frosting)

Turn the mixer to medium-high speed and continue mixing until the frosting is light and fluffy.

Once your cupcakes are baked and cooled and your frosting is made it is time to put the cupcakes together.

Divide your buttercream into three parts.

Using food coloring, color one part blue and one part red. You can use 3 different piping bags or one and rinse it out between colors. Use a large pastry tip when prepping your pastry bags.

Pipe the red buttercream in a single layer swirl on all the cupcakes.

Then pipe one layer of the white buttercream on top of the blue layer so it's smaller than the red layer.

To finish pipe the red frosting on top of the white layer so it's smaller than the white layer.