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:Preheat oven to 350.,______,Mix together melted butter, graham cracker crumbs,sweetened condensed milk, and chocolate chips; press down firmly with spoon in baking pan.,Bake 25 to 30 minutes or until lightly browned. Cool. Cut into bars. Store covered at room temperature.
Solution:
Spray a 13x9-inch baking pan with non-stick spray.