Cupcakes:

Cup of Yum
1. Preheat the oven to 350 degrees and line 2 muffin tins with muffin liners.
2. In your stand mixer cream the butter and sugar together until much lighter in color, 2-3 minutes.
3. Add in the egg whites and vanilla until totally combined.
4. Add the salt and baking powder to the flour.
5. Add in the dry ingredients and the milk alternating 1 cup of flour and 1/2 cup of milk at a time.
6. Add two cups of the batter to 3 different bowls.
7. Color each bowl with your gel food coloring in pink, blue and purple.
8. Mix until the colors are fully combined.

Your choice here: Spoon or ziploc bags.

1. Begin layering the colored batters in the prepared muffins tins.
2. Pipe just enough to make a thin layer of each color (maybe 1/4 inch tall batter layers)
3. Or, with a small spoon, spoon just under a tablespoon of batter into each cup.
4. Start with purple, then blue, then pink and repeat a second time.
5. Bake for 18-20 minutes.

To make the frosting:

1. Whip the butter in your stand mixer with your paddle attachment until you see the butter is lighter in color 2-3 minutes.
2. Add in the vanilla.
3. Add in the powdered sugar in 1 cup increments with the milk 1 tablespoon at a time, ending with powdered sugar.
4. Mix on high for 1 minute after each addition.
5. Your frosting should be SUPER light and fluffy, like a cloud.
6. Separate the frosting into three bowls, color it with pink, purple and blue food coloring until it makes a pastel color.
7. Add the frosting to 3 smaller piping bags, with ends snipped but without tip rings or piping tips.
8. Carefully place all three into one large piping bag fitted with a closed star tip. You want to get all three open tips of the smaller bags evenly in the decorating tip.
9. Squeeze a bit of frosting out until the colors are even and giving a rainbow effect. Pipe frosting into swirly mounds onto the cooled cupcakes.
10. The colors of the frosting will pipe together in a beautiful rainbow swirl.
11. Top with edible glitter stars, or other sprinkles of your choice.