Sugar-Free Chocolate Mousse
Sugar-free chocolate melted with a little cream and folded into whipped cream makes a light, egg-free mousse without baking. The key is to let the chocolate cool until barely warm before folding, so the cream stays airy. Chill the mousse in one clear glass bowl, leaving broad, soft swirls across its ungarnished surface. Because sugar-free chocolate chips vary in sweetness, taste the chocolate base before adding any extra sweetener.
Serves: 4 to 6 | Prep time: 20 minutes | Chill time: At least 2 hours | Total time: About 2 hours 20 minutes
Ingredients for Sugar-Free Chocolate Mousse

- 6 ounces sugar-free chocolate chips (about 1 cup; 170g), preferably intended for melting
- 1 1/2 cups heavy whipping cream, divided (360g)
- 1 teaspoon vanilla extract
- Optional: 1 to 2 tablespoons powdered sugar-free sweetener, or to taste
- Optional: a small pinch of fine salt
How to Make Sugar-Free Chocolate Mousse

- Melt the chocolate: Combine the chocolate chips and 1/2 cup of the cream in a microwave-safe bowl. Microwave at medium or medium-low power in 15- to 20-second intervals, stirring after each, for about 1 to 2 minutes total as needed. Stop when only a few small pieces remain, then stir until smooth. Stir in the vanilla and optional salt.
- Cool and taste: Let the chocolate base cool for about 5 to 10 minutes, stirring occasionally, until it is barely warm but still fluid. Taste it and stir in powdered sweetener a little at a time only if needed.
- Whip the cream: In a chilled mixing bowl, beat the remaining 1 cup of cold cream with an electric mixer until it holds medium peaks, about 2 to 4 minutes. The peaks should hold their shape while their tips bend slightly. Stop before the cream becomes stiff or grainy.
- Fold together: Fold about one-third of the whipped cream into the chocolate base to loosen it. Gently fold in the rest with a flexible spatula, lifting from the bottom of the bowl up and over. Stop when the mousse is evenly chocolate-colored with no large cream streaks.
- Swirl and chill: Spoon the mousse into one large, clear glass serving bowl. Make broad, soft swirls across the top with the spatula. Cover without touching the surface and refrigerate for at least 2 hours, until cool and softly set. If the center is still loose, chill longer.
How to Keep the Mousse Light and Smooth
Short heating intervals and frequent stirring help keep the chocolate from overheating and turning stiff or lumpy. A double boiler over gently simmering water is another way to melt it slowly.
The chocolate base should feel barely warm before it meets the whipped cream. If it is hot, the cream can lose its volume or form streaks. Fold gently rather than beating the mixtures together; a few faint streaks are better than an overmixed, dense mousse.
Adjusting Sweetness and Chilling Time
Sugar-free chocolate chips differ in sweetness and in how firmly they set. Taste the smooth chocolate base before adding sweetener. If it needs more, use a powdered sugar-free sweetener, especially for erythritol-based blends, which can feel gritty in granular form.
Use the 2-hour chill as a starting point. A deep bowl may need longer than a shallow one. The mousse is ready when it is cool, creamy, and firm enough to hold its soft ridges.
How to Store Sugar-Free Chocolate Mousse
Cover and refrigerate leftovers for up to 2 to 3 days. Keep the mousse chilled between servings; it is served cold and should not be reheated. Freezing is not recommended because the texture after thawing is uncertain for this mousse.
Nutrition
Approximate nutrition per serving, based on 6 servings: 345 calories, 3g protein, 33g fat, and 12g carbohydrates. Per 100g: approximately 390 calories, 4g protein, 37g fat, and 14g carbohydrates. Estimates include the core ingredients only and can vary considerably by chocolate brand.
Equipment
- Microwave-safe bowl
- Microwave
- Electric mixer
- Chilled mixing bowl
- Flexible spatula
- Clear glass serving bowl
Ingredients
For the Mousse
- 6 ounces sugar-free chocolate chips (about 1 cup; 170 g), preferably intended for melting
- 1 1/2 cups heavy whipping cream, divided (360 g)
- 1 teaspoon vanilla extract
- Optional: 1 to 2 tablespoons powdered sugar-free sweetener, or to taste
- Optional: a small pinch of fine salt
Instructions
- Combine the chocolate chips and 1/2 cup of the cream in a microwave-safe bowl.
- Microwave at medium or medium-low power in 15- to 20-second intervals, stirring after each, for about 1 to 2 minutes total as needed. Stop when only a few small pieces remain, then stir until smooth.
- Stir in the vanilla and optional salt.
- Cool the chocolate mixture for 5 to 10 minutes, stirring occasionally, until barely warm but still fluid. Taste it and add powdered sweetener a little at a time if needed.
- Beat the remaining 1 cup of cold cream in a chilled bowl until it holds medium peaks, about 2 to 4 minutes. Stop before it becomes stiff or grainy.
- Fold about one-third of the whipped cream into the chocolate mixture to loosen it.
- Gently fold in the remaining whipped cream, lifting from the bottom of the bowl, until evenly chocolate-colored with no large cream streaks.
- Spoon the mousse into a clear glass serving bowl and make broad, soft swirls across the top.
- Cover without touching the surface and refrigerate for at least 2 hours, until cool and softly set. Chill longer if the center is still loose.
Tips
- Use short microwave intervals and stir frequently to prevent the chocolate from overheating.
- Let the chocolate mixture cool until barely warm before folding in the whipped cream.
- Fold gently rather than beating the mixtures together to keep the mousse airy.
- Taste the chocolate base before adding sweetener, since sugar-free chocolate chips vary in sweetness.
- Use powdered sweetener to reduce the chance of a gritty texture.
