Bake this irresistible Rhubarb Cake at home. Made with rhubarb, sugar, strawberry and marshmallows. Easy step-by-step instructions included.
This Rhubarb Cake relies on simple, everyday ingredients such as rhubarb, cut in small pieces, sugar, miniature marshmallows and box yellow or white cake mix. It comes together quickly and makes 4 servings, at about 124 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