Bake this irresistible Triple Layer Mousse Cake at home. Made with brownie mix, pkgs, whipping cream and vanilla. Easy step-by-step instructions included.
This Triple Layer Mousse Cake relies on simple, everyday ingredients such as (about 18 oz) brownie mix, whipping cream, vanilla extract and sugar. It comes together quickly and makes 4 servings, at about 2208 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 Triple Layer Mousse 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