Overnight Coffee Cake
["2 c. flour", "1 c. sugar", "1/2 c. brown sugar", "1 tsp. baking powder", "1 tsp. baking soda", "1/2 tsp. salt", "1 tsp. cinnamon", "1 c. buttermilk", "2/3 c. margarine, melted", "2 large eggs", "1/2 c. brown sugar", "1/2 c. pecans, ground"]
["Combine first 7 ingredients in large bowl.", "Add buttermilk, butter and eggs.", "Beat at low speed until moistened.", "Beat 3 minutes at medium speed.", "Spoon into greased and floured 9 x 13-inch pan.", "Combine brown sugar, nuts and cinnamon.", "Sprinkle over batter.", "Cover and refrigerate 8 to 12 hours.", "Uncover.", "Bake at 350\u00b0 for 30 to 35 minutes (or bake immediately at 350\u00b0 about 30 minutes)."]
["flour", "sugar", "brown sugar", "baking powder", "baking soda", "salt", "cinnamon", "buttermilk", "margarine", "eggs", "brown sugar", "pecans"]