American Funfetti Cake

Preheat oven to 350ºF. Coat the bottom and sides of a 13×9 in pan with butter and dust with granulated sugar. Shake out excess sugar.

To make the cake, combine flour, baking powder, and salt in a bowl. Set aside.

Put egg whites in a bowl and whip until fluffy, about 3 minutes on high. Set aside.

With a beater, combine butter and sugar and beat until creamy. Add half of the milk, combine, then add half of the flour mixture and combine. Repeat. Add in the vanilla. With a rubber spatula, fold in the egg whites until they are just incorporated, then do the same with the sprinkles. Be careful not to over-mix.

Pour cake batter into the pan and cook for 30 – 35 minutes, checking often, and removing from the oven when a toothpick inserted into the center of the cake comes out clean. Remove from the pan and let cool on a wire rack.