Blueberry Muffins - cooking recipe

Ingredients

1/2 cup margarine
1 1/4 cup sugar
2 eggs
1 cup sour cream
1 tsp. vanilla
2 cups flour
1 tsp. baking powder
1/2 tsp. soda
1/4 tsp. salt (optional)
1 1/2 cup blueberries

Preparation

Mix first 5 ingredients and beat until smooth, mix dry ingredients into creamed mixture. Fold in blueberries and bake in oven at 400 degrees about 25-30 minutes. Frozen or fresh blueberries can be used.