Bake this irresistible Krispie Treat Brownies W/M & M's from a Box at home. Made with brownie mix, marshmallows, butter and peanut butter. Easy step-by-…
This Krispie Treat Brownies W/M & M's from a Box relies on simple, everyday ingredients such as brownie mix, mini marshmallows, butter and peanut butter. It comes together quickly and makes 4 servings, at about 857 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 Krispie Treat Brownies W/M & M's from a Box 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