Pecan-Topped Coffee Cake
["2/3 c. butter", "1 c. sugar", "1/2 c. brown sugar", "1 tsp. vanilla", "1 tsp. baking powder", "2 eggs", "2 c. all-purpose flour", "1 tsp. soda", "1/2 tsp. salt", "1 tsp. cinnamon", "1 c. buttermilk"]
["Cream butter.", "Gradually add 1 cup sugar and 1/2 cup brown sugar.", "Add eggs, one at a time, beating well after each.", "Add vanilla.", "Combine flour, baking powder, soda, salt and cinnamon. Add creamed mixture alternately with buttermilk.", "Mix well.", "Pour into greased 13 x 9 x 2-inch pan."]
["butter", "sugar", "brown sugar", "vanilla", "baking powder", "eggs", "flour", "soda", "salt", "cinnamon", "buttermilk"]