Cocoa Cola Cake
["1 c. soft butter", "2 c. flour", "1 3/4 c. sugar", "1 tsp. baking soda", "3 Tbsp. cocoa", "1 tsp. vanilla", "2 eggs", "1/2 c. buttermilk", "1 c. cola", "1 1/2 c. miniature marshmallows"]
["Combine all ingredients, except cola and the marshmallows, in large bowl.", "Blend well and beat 1 minute at medium speed of mixer.", "Add cola; blend well and stir in marshmallows.", "Pour into 9 x 13-inch cake pan.", "Bake at 350\u00b0 for 40 minutes."]
["butter", "flour", "sugar", "baking soda", "cocoa", "vanilla", "eggs", "buttermilk", "cola", "marshmallows"]