Prepare the dessert bars in a pan lined with aluminum foil.
Lightly spray pan with non-stick spray; line the pan with aluminum foil, allowing for a one-inch overhang. Lightly spray the foil.
Allow bars to cool completely. Pull up on the foil "handles" to transfer to a cutting board to cut.
Dessert bars are best when cooled to room temperature. The cooling time allows the bars to fully bake. If you are in a hurry, they can be placed in the refrigerator to cool completely.
For clean, evenly cut bars, measure with a ruler and cut the bars with a disposable plastic knife, or stretch unflavored dental floss across the bars and push it down through the bars.