Blueberry Muffins

Difficulty: easy Prep Time: Fifteen Minutes Total Time: More than 1 hour
2 cups flour
2 tsp baking powder
1/2 tsp salt
1/2 cup butter
1 cup sugar
1 egg, separated
3/4 cup milk
1 tsp vanilla
1 1/2 cups blueberries

Sift flour, baking powder and salt and set aside. Cream together butter and sugar. Add egg yolk and beat well. Add milk. Stir in sifted dry ingredients. In a separate bowl beat egg white until stiff. Fold into batter along with vanilla. Mix in the blueberries carefully not to over mix. Bake at 350F for 45 to 50 minutes.