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.

Cream butter and sugar together, add yolks of eggs.,Mix well. Put,soda,in,milk,and add to other ingredients.,Sift flour and,spices,together.,Add,______,Fold in beaten egg whites and add jam, nuts and raisins last.,Bake in 3 (9-inch) pans at 375 until toothpick comes out clean.
to butter mixture.