Cookie Dessert

This old-school no-bake dessert layers a buttery chocolate cookie crumb crust under a billowy marshmallow custard that’s lighter than you’d expect. The custard starts on the stovetop with milk, egg yolks, and marshmallows heated until thick and smooth, then gets folded with stiffly beaten egg whites and whipped cream for serious volume and airiness.

The trick is patience on the stovetop. Heat the marshmallow mixture slowly, stirring constantly, until the marshmallows melt completely and the custard coats the back of a spoon. Let it cool fully before folding in the whipped cream and egg whites, otherwise you’ll deflate all that lift you just built.

Once assembled, it needs proper chill time in the fridge to set firm enough for clean slices.

Chef Tips

• Crush cookies into fine, even crumbs. Larger pieces make a crumbly base that falls apart when sliced.
• Cool the custard to room temperature before folding in the egg whites and cream. Warmth collapses the volume.
• Reserve a generous two tablespoons of crumbs for the topping so it looks finished and adds crunch.
• Chill for at least 4 hours, or overnight for the best texture.

Variations

• Use graham crackers or vanilla wafers instead of chocolate cookies for a different flavor base.
• Fold in mini chocolate chips or crushed peppermint candies with the custard for extra texture.
• Top with a thin layer of chocolate ganache before sprinkling the final crumbs.