Given the task definition and input, reply with output. 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.

Preheat oven to 350 degrees.,In medium bowl, stir together muffin mix, oats, butter, honey, brown sugar and milk.,______,Spread apple butter over crust.,Stir nuts into reserved oat mixture; sprinkle over apple butter.,Bake at 350 degrees for 18-20 minutes or until bars just begin to brown.
Reserve 1 cup of oat mixture; press remainder into 8-by-8-inch baking pan coated with cooking spray.