Given the task definition and input, reply with output. In this task, you will be presented with the directions of a recipe separated by "," and have to fill in the "___" which is a step that is missing from the recipe.

______,butter,and,sugar; add eggs, flour, sour cream, vanilla, baking,powder, soda and salt and mix well.,Pour 1/2 of batter,into,greased tube pan.,Sprinkle topping of cinnamon, brown sugar and nuts,or,dates,on top of batter and top with remaining batter.,Bake at 325 for 45 minutes to 1 hour. Cake will fall slightly when removed from oven.
Cream