Ebelskivers

2 cups buttermilk
2 cups flour
3 eggs, divided
1 teaspoon baking powder
1 teaspoon baking soda
1/2 teaspoon salt
2 tablespoons sugar

Beat egg whites until they are stiff. In a separate bowl, beat egg yolks; add sugar, flour, baking powder, baking soda, salt, and buttermilk.
Gently fold in egg whites.
Heat puff pan to medium and generously apply cooking spray. Fill each cup 2/3 full and turn halfway through (about 30 seconds on each side). Makes approximately 40.