Bake this irresistible Rainbow Cake! (Yellow Cake Base) at home. Made with Flour, Baking Powder, Kosher Salt and Butter. Easy step-by-step instructions …
This Rainbow Cake! (Yellow Cake Base) relies on simple, everyday ingredients such as cake flour, baking powder, kosher salt and butter (unsalted is best). It comes together quickly and makes 4 servings, at about 1110 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 Rainbow Cake! (Yellow Cake Base) 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