Bake this irresistible Rocky Road Cake at home. Made with walnuts, marshmallows, cake mix and mayonnaise. Easy step-by-step instructions included.
This Rocky Road Cake relies on simple, everyday ingredients such as chopped walnuts, miniature marshmallows, devil's food cake mix and mayonnaise. It comes together quickly and makes 4 servings, at about 1216 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 Rocky Road Cake 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