Blueberry Pound Cake
["1 c. plus 2 Tbsp. butter or margarine", "2 1/4 c. sugar", "4 eggs", "1 tsp. vanilla", "3 c. all-purpose flour", "1 tsp. baking powder", "1/2 tsp. salt", "2 c. fresh blueberries or canned, drained"]
["Grease 10-inch tube pan with 2 tablespoons of butter. Sprinkle pan with 1/4 cup of sugar.", "Set aside."]
["butter", "sugar", "eggs", "vanilla", "all-purpose", "baking powder", "salt", "fresh blueberries"]