• 1 cup sugar
• 1/2 cup butter
• 2 eggs
• 1 teaspoon vanilla
• 2 cups flour
• 1 tablespoon baking powder
• 1-1/2 teaspoon baking soda
• 1 cup sour cream
• 1 cup blueberries
• Dash of cinnamon

Preheat oven to 375°F. Beat sugar and butter together. Add eggs, vanilla, baking powder, baking soda, sour cream, and cinnamon. Add blueberries. Sprinkle top of muffins with cinnamon and sugar. Bake for 20-25 minutes. Makes 12 regular sized muffins.