Q: 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.
In a large mixing bowl, cream cocoa, sugar and margarine.,Add eggs one at a time, beating well after each addition.,Add flour, nuts and vanilla.,Spread into a 13 x 9-inch baking pan.,Bake at 350 for 27 minutes.,______,Frost when cool if desired.,Cut into squares.
A:
Test for doneness with a toothpick inserted in center or they are done when sides turn in.