Bake this irresistible Double Decker Brownies Using Basic Cookie Mix at home. Made with brownie mix, marshmallows, peanut butter and vegetable shortenin…
This Double Decker Brownies Using Basic Cookie Mix relies on simple, everyday ingredients such as each brownie mix, miniature marshmallows, peanut butter chips and vegetable shortening. It comes together quickly and makes 4 servings, at about 603 kcal each. The step-by-step instructions below are written to be easy to follow, even on a busy day.
Whether you're rounding off a family dinner, bringing a treat to a gathering, or simply satisfying a sweet craving, this Double Decker Brownies Using Basic Cookie Mix delivers. Serve it warm or at room temperature, and add a scoop of ice cream or a spoonful of whipped cream for an extra-special finish.
Updated Jun 30, 2026