Blueberry Muffins - cooking recipe

Ingredients

2 c. flour
1 tsp. baking powder
1 tsp. baking soda
1 c. sugar
1 stick butter or margarine
2 eggs
1 c. sour cream
1 tsp. vanilla
1 c. frozen blueberries

Preparation

Mix all ingredients, adding blueberries last.
Bake in muffin pans at 350\u00b0 for 20-25 minutes.