Quick Coffee Cake
["3 Tbsp. softened butter or margarine", "1/2 c. granulated sugar", "1 egg", "1 c. flour (all-purpose)", "1 1/4 tsp. baking powder", "1/4 tsp. salt", "1/3 c. milk", "1/4 tsp. vanilla", "1/3 c. brown sugar, packed", "1/2 tsp. cinnamon", "2 Tbsp. butter or margarine"]
["Mix 3 tablespoons of butter with granulated sugar. Mix flour, baking powder and salt thoroughly.", "Add to sugar mixture alternately with milk.", "Add vanilla.", "Spread batter evenly in a greased 8-inch square greased pan."]
["butter", "sugar", "egg", "flour", "baking powder", "salt", "milk", "vanilla", "brown sugar", "cinnamon", "butter"]