Bonnie'S Blueberry Muffins
["2 c. all-purpose flour", "2/3 c. sugar", "1 Tbsp. baking powder", "1/2 tsp. salt", "2 eggs", "1 c. milk", "1/3 c. butter or margarine, melted", "1 tsp. ground nutmeg", "1 tsp. vanilla extract", "2 c. fresh or frozen blueberries*", "additional butter or margarine, melted", "additional sugar"]
["*If using frozen blueberries, rinse and pat dry before adding to batter."]
["flour", "sugar", "baking powder", "salt", "eggs", "milk", "butter", "ground nutmeg", "vanilla extract", "butter", "additional sugar"]