Bake this irresistible Fudge Layer Crumb Bars at home. Made with yellow cake mix, margarine, egg and nuts. Easy step-by-step instructions included.
This Fudge Layer Crumb Bars relies on simple, everyday ingredients such as box yellow cake mix, softened margarine, egg and chopped nuts. It comes together quickly and makes 4 servings, at about 328 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 Layer Crumb 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