Bake this irresistible Rhubarb crumble tray-bake cake at home. Made with rhubarb, flour, butter and brown sugar. Easy step-by-step instructions included.
This Rhubarb crumble tray-bake cake relies on simple, everyday ingredients such as (4.4oz) plain flour, (2.6oz) butter, (7.9oz) self-raising flour and (3.5oz) butter, softened. It comes together quickly and makes 4 servings, at about 846 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 crumble tray-bake 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