Detailed Instructions: 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.
Problem:In a saucepan melt butter.,stir in granulated sugar and milk.,Bring to boil, stirring occasionally.,______,Gradually add confectioners' sugar while beating with a spoon until smooth;.,blend in vanilla.
Solution:
cool.