Bake this irresistible Hasty Cake Icing at home. Made with sugar, flour, butter and boiling water. Easy step-by-step instructions included.
This Hasty Cake Icing relies on simple, everyday ingredients such as sugar, rounded tbsp. flour, butter (size of an egg) and pt. boiling water. It comes together quickly and makes 4 servings, at about 318 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 Hasty Cake Icing 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