Definition: 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.
Input: Mix butter and water and bring to a boil.,Remove from heat and add flavoring.,Stir in flour immediately to prevent lumping. When smooth and thick, add eggs, one at a time.,______,Divide in half and spread evenly over each piece of pastry.,Bake about 50 to 60 minutes, until topping is crisp and brown, at 350.,Frost when cool.
Output:
Beat until smooth.