Sister Farmer'S Famous Coconut Cake
["1 tsp. rum flavoring", "2 Tbsp. flour", "1 Tbsp. baking powder", "1 tsp. butter flavor", "5 egg yolks", "1/2 c. butter", "1 1/4 c. milk", "2 Tbsp. sugar", "1 tsp. vanilla", "1 pkg. Duncan Hines butter cake mix"]
["Preheat oven to 350\u00b0.", "Mix cake mix, sugar, flour and baking powder together.", "Add butter, milk and egg yolks.", "Beat with mixer real good.", "Add flavors and beat well.", "Cook until done.", "Use 3 (9-inch) cake pans.", "Frost when cake is cooled."]
["rum flavoring", "flour", "baking powder", "butter flavor", "egg yolks", "butter", "milk", "sugar", "vanilla", "cake mix"]