Hot Chocolate Mousse Cups Recipe

These hot chocolate mousse cups are a no bake chocolate mousse flavored like a mug of hot cocoa: cold heavy cream whipped with cocoa powder and powdered sugar, then folded with melted semi-sweet chocolate. You need 1½ cups cream to 1 cup chocolate chips, 20 minutes of work and 2 hours in the fridge, and you get 6 small cups.

Top them the way you would top hot chocolate, with whipped cream, mini marshmallows and chocolate curls. The one step to slow down on is the fold, so the chocolate stays smooth and the mousse stays airy.

Is Hot Chocolate Mousse Served Warm?

No. Hot chocolate mousse is served cold, straight from the fridge, after at least 2 hours of chilling. The “hot chocolate” part is the flavor: cocoa powder in the cream gives it that hot cocoa taste, and the marshmallow and whipped cream toppings finish the look.

If you want something you actually drink warm, my homemade hot chocolate uses the same cocoa and chocolate pairing.

What Goes Into Six Cocoa Mousse Cups

• 1½ cups heavy whipping cream, cold. It is the whole structure here, so use real cream with at least 36% fat, not whipped topping.
• 1 cup semi-sweet chocolate chips or chopped chocolate. Semi-sweet keeps it rich without being too sweet; milk chocolate tastes flat against the cocoa.
• 3 tablespoons unsweetened cocoa powder for the hot cocoa flavor.
• 3 tablespoons powdered sugar. It dissolves straight into cold cream, where granulated sugar would stay gritty.
• ½ teaspoon vanilla extract and a pinch of salt, which makes the chocolate taste deeper.
• Toppings: whipped cream, mini marshmallows, chocolate curls or shavings, and a light dusting of cocoa or cinnamon if you like.

Melting the Chips Without Seizing

Melt the chocolate in a dry microwave-safe bowl in 30 second bursts, stirring well after each one. Stop while a few soft lumps remain and stir until they melt on their own. Chips hold their shape even when they are melted, so stirring tells you more than looking does.

Keep every drop of water out of the bowl. Even a wet spatula can make chocolate seize into a stiff, dull paste. A chopped bar melts more fluid than chips, which have stabilizers in them, and it folds a little more easily. Set the bowl aside to cool while you whip the cream.

Cocoa Whipped Cream, Soft Peaks First

Start cold. Chill the bowl and beaters for 10 minutes, then beat the cold cream to soft peaks, where the tips flop over. Only now add the powdered sugar, cocoa, vanilla and salt. Cocoa thickens cream fast, so stiff peaks arrive within seconds. Stop when the peaks stand straight up but the cream still looks glossy. The method is the same as my whipped cream frosting, with cocoa added.

Gone too far and the cream looks grainy or curdled? Fold in 2 to 3 tablespoons of cold cream by hand. It smooths out again.

Folding So the Chocolate Stays Smooth

The chocolate should be fluid and only just warm when it meets the cream, around 90°F (32°C), about the feel of your lip. If it is hotter, it melts the cream and the mousse goes soupy. If it has cooled too far, it sets into hard chocolate flecks the moment it hits the cold cream.

Stir one big spoonful of the whipped cream into the chocolate first. This loosens it so it blends instead of clumping. Then fold that mixture into the rest of the cream in two additions with a wide spatula, cutting down through the middle and turning the bowl. Stop as soon as there are no streaks left. A few extra turns cost you air.

Grainy, Soft or Flat Mousse and How to Fix It

• Little hard chocolate bits: the chocolate was too cool. Next time loosen it with a spoonful of cream first. Already happened? Call them chocolate chips; it still tastes good.
• Still soft after 2 hours: the cream was not whipped to stiff peaks or was overfolded. Give it another hour in the fridge before deciding.
• Heavy and dense: too much folding. Stop at the last streak.
• Tastes flat: the salt was skipped, or the chocolate is a mild one. A pinch of salt sharpens it.

Chilling and Making Mousse Cups a Day Ahead

Spoon or pipe the mousse into the cups, cover each with plastic wrap and chill at least 2 hours, until set. You can make them up to 24 hours before serving. Keep the toppings off until the last minute, because marshmallows soften and whipped cream weeps on a mousse that sits overnight.

Skip the freezer. The texture turns icy and loses its airiness when it thaws.

Glasses, Ramekins or Chocolate Cups?

Small glasses or ramekins of about 4 to 6 ounces are the easy choice: they can sit in the fridge for a day, and you can see the layers of mousse and cream through the glass.

Edible chocolate cups look festive on a dessert board but need different timing. Buy ready made dark chocolate dessert cups, or brush two thin coats of melted chocolate inside foil cupcake liners, chill until hard and peel the foil away. Chill the mousse in a covered bowl first, then pipe it into the cups with a large star or round tip within a few hours of serving. Keep them in the fridge. Hold them by the base, since warm fingers soften the shell. Small chocolate cups hold less than a glass, so expect more than 6.

Hot Cocoa Toppings and a Peppermint Twist

Just before serving, pipe a swirl of whipped cream on each cup, add a few mini marshmallows and some chocolate curls. A light dusting of cocoa or cinnamon finishes them. For a cinnamon hot cocoa version, fold a pinch of cinnamon straight into the mousse.

For peppermint hot cocoa cups, scatter crushed candy canes over the cream right before serving; they go sticky if added early. My candy cane chocolate mousse cups and peppermint mocha mousse go further in that direction.

On a Christmas dessert table, these sit well next to eggnog mousse cups, cranberry mousse cups and red velvet dessert cups. For a plain chocolate version without the hot cocoa angle, see my chocolate mousse recipe, and for a warmer-spiced pudding try the cinnamon hot chocolate pudding cups.

Tell me in the comments whether yours went into glasses or chocolate cups, and what you put on top.