Bake this irresistible Rhubarb Cake at home. Made with rhubarb, sugar, yellow cake mix and marshmallows. Easy step-by-step instructions included.
This Rhubarb Cake relies on simple, everyday ingredients such as chopped rhubarb, sugar, box yellow cake mix and bag miniature marshmallows. It comes together quickly and makes 4 servings, at about 116 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 Rhubarb 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