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.

Peel and cut up potatoes into 1 to 1 1/2-inch chunks.,Boil until tender; drain off water.,______,Add butter, salt, pepper and chopped parsley.
Add 1 cup or more milk for sauce. Mix flour with water to thicken milk.