Blueberry Muffins
["1 stick butter", "1 c. sugar", "2 eggs", "1 c. all-purpose flour", "1 tsp. baking powder", "1 tsp. vanilla", "1 c. blueberries"]
["Cream butter and sugar.", "Add eggs and beat.", "Add flour, baking powder and vanilla.", "Mix well.", "Fold in blueberries gently.", "Drop mixture into muffin pan.", "Bake 25 minutes or until muffins are golden brown at 350\u00b0."]
["butter", "sugar", "eggs", "flour", "baking powder", "vanilla", "blueberries"]