Mom'S Coffee Cake
["1 box white cake mix", "4 eggs", "3/4 c. sugar", "3/4 c. oil", "1 c. sour cream", "1 tsp. vanilla", "1 tsp. butter flavoring", "3 Tbsp. sugar", "1 1/2 tsp. cinnamon"]
["Grease and flour angel food or bundt pan.", "Combine first 7 ingredients.", "Mix 3 Tbsp. sugar with cinnamon.", "Layer 1/2 cake dough and sprinkle with sugar and cinnamon mixture.", "Repeat.", "Bake at 350 degrees for 1 hour."]
["white cake mix", "eggs", "sugar", "oil", "sour cream", "vanilla", "butter", "sugar", "cinnamon"]