Dr. Pepper Cake
["1 1/4 c. butter, divided", "2 c. sugar", "1 1/4 c. Dr. Pepper, divided", "7 Tbsp. cocoa, divided", "1 1/2 tsp. cinnamon", "2 c. flour", "2 eggs", "1/2 c. buttermilk", "1 tsp. soda", "1 tsp. vanilla"]
["Cream 1 cup butter and sugar until light and fluffy.", "Add 1 cup Dr. Pepper and mix well.", "Stir in 4 tablespoons cocoa, cinnamon and flour; mix thoroughly.", "Add eggs, buttermilk and soda; beat until creamy.", "Pour into 13 x 9 x 2-inch baking pan. Bake in a 350\u00b0 gas oven for 40 to 45 minutes.", "Five minutes before cake is done, melt remaining butter, cocoa and Dr. Pepper with vanilla; mix well.", "Pour over hot cake."]
["butter", "sugar", "Dr. Pepper", "cocoa", "cinnamon", "flour", "eggs", "buttermilk", "soda", "vanilla"]