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.
Q: Cream butter with sugar.,Sift dry ingredients together and add alternatively with the sour cream to the creamed mixture.,Add nuts.,Knead together well; shape into a loaf, wrap in waxed paper and chill in the refrigerator overnight.,______,Slice and bake approximately 8 minutes until lightly browned.
A:
Preheat oven to 400F.