Chocolate-Covered Marshmallow Mousse Squares
Indulgent, airy, and rich, these mousse squares have a delicate marshmallow-mousse interior coated in a crisp chocolate shell. Perfect for dessert platters, gifts, or a special treat.
Ingredients (Makes about 16 squares)
For the Mousse Filling
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1 cup (240 ml) whole milk
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1 ½ cups (150 g) mini marshmallows (white)
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4 oz (115 g) semisweet chocolate, finely chopped
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1 tablespoon unsweetened cocoa powder
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1 teaspoon gelatin powder, bloomed in 1 tablespoon cold water
For the Chocolate Coating
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8 oz (225 g) milk or dark chocolate melting wafers
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1 tablespoon coconut oil (helps coating stay smooth and snap cleanly)
Instructions
1. Prepare the Cocoa Base
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In a small saucepan over medium-low heat, combine the milk and cocoa powder.
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Whisk gently until the cocoa dissolves and the milk is steaming but not boiling.
2. Melt the Marshmallows and Chocolate
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Add the mini marshmallows and chopped chocolate to the warm milk.
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Stir constantly with a whisk until the marshmallows and chocolate are fully melted and the mixture is silky smooth.
3. Add the Gelatin
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Remove the pan from heat.
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Stir in the bloomed gelatin while the mixture is still hot.
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Whisk vigorously for 1 minute to ensure the gelatin is fully incorporated and to introduce tiny air bubbles for a light, porous texture.
Tip: For an even airier texture, you can whip the mixture with a hand mixer for 1–2 minutes before pouring into the mold.
4. Set the Mousse
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Line an 8×8 inch square baking dish with parchment paper, leaving an overhang on the sides for easy removal.
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Pour the mousse mixture into the dish and tap lightly on the counter to level it.
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Refrigerate for at least 4 hours, or until firm to the touch.
5. Cut into Squares
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Lift the mousse block from the dish using the parchment overhang.
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Use a sharp, warm knife to cut the block into equal squares.
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Wipe the knife clean between cuts for crisp, clean edges.
6. Dip and Coat
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Melt the chocolate wafers and coconut oil in a microwave-safe bowl in 30-second intervals, stirring each time until smooth.
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Using a fork, dip each mousse square into the melted chocolate.
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Shake off excess chocolate and place the squares on parchment paper.
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Let the coating harden at room temperature, or refrigerate for 5 minutes.
Pro Tips for Perfection
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Airier Texture: Whipping the chocolate-marshmallow mixture slightly before setting creates a more porous interior, similar to a premium aerated chocolate bar.
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Clean Edges: Warm your knife slightly and wipe it after each cut to maintain perfect square shapes.
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Chocolate Shell: Adding coconut oil to the melted chocolate ensures a smooth finish that snaps when bitten.
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Storage: Keep the mousse squares in an airtight container in the refrigerator for up to 5 days.