Bake this irresistible Peanut Butter Marshmallow Brownie at home. Made with brownie mix, marshmallows, semi sweet chocolate chips and peanut butter. Eas…
This Peanut Butter Marshmallow Brownie relies on simple, everyday ingredients such as brownie mix, of mini marshmallows, semi sweet chocolate chips and creamy peanut butter. It comes together quickly and makes 4 servings, at about 951 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 Peanut Butter Marshmallow Brownie 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