Preheat your waffle iron, using a round Belgian waffle maker.

In a stand mixer, add the two egg whites and beat to stiff peaks on high.

Carefully transfer the egg whites to another bowl.

In the stand mixer, add the egg yolks, vanilla, buttermilk, and melted butter; mix until well blended.

Add the flour, baking powder, baking soda, sugar, and salt; combine.

Divide the batter into six bowls; color each with a different gel food coloring, using increasing amounts from red to purple.

Gently fold an equal ratio of egg whites into each bowl of batter.

Transfer each colored batter to ziploc piping bags.

Pipe colors in circles around the waffle iron, starting with red on the outside and ending with purple in the center.

Cook the waffles for about 75-80% of the normal cooking time, avoiding excessive browning.

Garnish with whipped cream and Rolo candies.