preheat oven to 350

Combine sugar & butter and beat until fluffy.

Mix together flour, baking powder, salt, & cinnamon, set aside.

Mix Rum Chata & vanilla together, set aside.

alternating, add in the flour mixture and Rum Chata mixture in to the butter and sugar. Start and end with the flour mixture.

in a clean mixing bowl, beat egg whites until soft peaks form (this will be the easiest with an electric mixer)

fold egg whites in to the batter, do not do this in an electric mixer, use a spatula

fill cupcake liners.

bake for 20 minutes or until cake "bounces back" when touched.