Blueberry Muffins - cooking recipe

Ingredients

1/4 c. softened butter
1 c. sugar
3 tsp. baking powder
2 c. flour
1 tsp. cinnamon
1 egg
1/3 c. milk
1/2 c. sour cream
1 tsp. vanilla
1 1/2 c. blueberries

Preparation

Cream together with mixer the butter and sugar.
Beat in baking powder and flour.
Take 1/4 cup of mixture and set aside. Add cinnamon to this 1/4 cup of mixture. To remainder of mixture add egg, milk, sour cream and vanilla.
Beat well.
Fold in blueberries. Line 12 muffin tins with foil liners.
Fill tins; sprinkle with reserved mixture over top.
Bake at 375\u00b0 for 25 minutes or until toothpick comes out clean.