Crumb Coffee Cake(For A Large Crowd)  
["1 pkg. Duncan Hines Butter Recipe cake mix", "2/3 c. oil", "4 eggs, slightly beaten", "2/3 c. milk", "2 sticks margarine", "1 stick butter", "4 c. flour", "2/3 c. brown sugar", "2/3 c. granulated sugar", "1 Tbsp. cinnamon", "1 tsp. vanilla", "10x sugar"]
["Mix together cake mix, oil, eggs and milk.", "Beat with beater until smooth.", "Grease and flour 12 x 18-inch cookie sheet (with sides).", "Pour batter into cookie sheet and bake at 350\u00b0 for 18 minutes.", "Cool slightly (3 to 5 minutes)."]
["Butter", "oil", "eggs", "milk", "margarine", "butter", "flour", "brown sugar", "granulated sugar", "cinnamon", "vanilla", "sugar"]