Bake this irresistible Fudge Full Peanut Butter Bars at home. Made with yellow cake mix, peanut butter, margarine and eggs. Easy step-by-step instructio…
This Fudge Full Peanut Butter Bars relies on simple, everyday ingredients such as yellow cake mix, peanut butter, margarine or butter, melted and eggs. It comes together quickly and makes 4 servings, at about 1700 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 Fudge Full Peanut Butter Bars 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