Low Deuterium Dark Chocolate Coconut Mousse

A rich dark chocolate coconut mousse served in an elegant glass, topped with cacao nibs and sea salt flakes — a low deuterium, keto-friendly dessert by Yavelle

August 2026 · Yavelle Recipes · 6 min read

Low Deuterium Keto Dairy Free Gluten Free Dessert 15 Minutes
Most desserts are off the table on a low deuterium diet. This one isn’t. Rich, silky dark chocolate mousse made with full-fat coconut cream and pasture-raised eggs — no dairy, no sugar, no grains, and every ingredient naturally low in deuterium.

Dessert is often the hardest part of low deuterium eating. Most sweet things are built on sugar, flour and dairy. This mousse is the exception. It’s built entirely on high-fat, low-water ingredients that taste deeply indulgent.

The base is 85% dark chocolate — high in cacao butter, low in water, and rich in flavour. The body comes from full-fat coconut cream chilled overnight until it’s thick and whippable. Pasture-raised eggs provide structure and richness. A small amount of grass-fed butter adds gloss and depth. The result is a mousse that rivals anything you’d find in a restaurant.

Prep Time 15 minutes Chill Time 2 hours
Serves 4 Calories (estimated) ~320 per serve
Net Carbs (estimated) ~6g per serve Fat (estimated) ~28g per serve

Nutrition figures are estimates and will vary based on the specific ingredients and amounts used.

Food safety: this recipe contains raw egg

The egg yolks and whites in this mousse are not cooked. Use the freshest eggs you can, keep them refrigerated, discard any that are cracked or dirty, and keep the finished mousse in the fridge until you serve it. Raw and lightly cooked egg can carry a risk of foodborne illness, so this recipe is not suitable for pregnant women, infants, older people or anyone who is immunocompromised. Those groups, or anyone who would simply rather avoid raw egg, can replace the egg whites with 120ml of additional whipped coconut cream. The mousse will be slightly less airy but still delicious.

Ingredients

Note: Chill the coconut cream in the fridge overnight so the solid cream separates from the liquid. You only use the solid part.

  • 200g dark chocolate, 85% cacao, roughly chopped
  • 400ml full-fat coconut cream, chilled overnight
  • 3 pasture-raised eggs, separated (see food safety note above)
  • 2 tbsp grass-fed butter
  • 2 tbsp erythritol or monk fruit sweetener, or to taste
  • 1 tsp pure vanilla extract
  • Pinch of fine sea salt
  • To serve: cacao nibs, sea salt flakes (optional)

Method

  1. Melt the chocolate. Place the chopped dark chocolate and grass-fed butter in a heatproof bowl set over a saucepan of barely simmering water. Stir gently until completely melted and smooth. Remove from the heat and allow to cool for 5 minutes.
  2. Whip the coconut cream. Open the chilled coconut cream and scoop the solid cream into a bowl, leaving behind any liquid. Whip with an electric mixer until thick and fluffy, about 2–3 minutes. Set aside.
  3. Add egg yolks. Whisk the egg yolks and erythritol together until pale and slightly thickened, about 1 minute. Stir into the cooled chocolate mixture along with the vanilla extract. Mix until smooth and glossy.
  4. Whip the egg whites. In a clean, dry bowl, whisk the egg whites with a pinch of sea salt to stiff peaks.
  5. Fold together. Gently fold the whipped coconut cream into the chocolate mixture until just combined. Then add the egg whites in two additions, folding carefully each time to preserve as much air as possible.
  6. Chill. Spoon the mousse into four serving glasses or ramekins. Refrigerate for at least 2 hours, or overnight for the best texture. Keep refrigerated until you serve.
  7. Serve. Top with a scattering of cacao nibs and a pinch of sea salt flakes just before serving.

Why the ingredients suit a low deuterium way of eating

  • 85% dark chocolate — high in cacao butter, very low in water, minimal sugar
  • Full-fat coconut cream — predominantly saturated fat, very low water fraction
  • Pasture-raised eggs — fat and protein, with no sugar or starch
  • Grass-fed butter — an animal fat, naturally low in deuterium
  • Erythritol — a non-sugar sweetener, so no added sugar
  • No added water, no milk, no flour, no sugar

Tips & variations

Make it ahead. This mousse keeps in the fridge for up to 3 days. Cover each glass with cling wrap and add the toppings only when serving.

Use DDW. If you are making a thin chocolate ganache to drizzle on top, use deuterium-depleted water instead of tap water.

Add a coffee note. A small pinch of instant espresso powder stirred into the melted chocolate deepens the flavour without adding carbs.

Prefer it firmer? Use three egg whites instead of two and fold them in more gently. The extra structure gives a denser, truffle-like result that holds its shape well when turned out of a ramekin.

Frequently Asked Questions

What makes this chocolate mousse low in deuterium?

Every ingredient has been chosen for being high in fat and low in water. Dark chocolate at 85% cacao is high in fat and very low in water. Full-fat coconut cream is predominantly saturated fat with minimal water content. Grass-fed butter is an animal fat and is naturally low in deuterium. There is no added water, no milk, no flour and no sugar.

Why use coconut cream instead of regular cream or milk?

Conventional dairy cream and milk contain significant amounts of water. Full-fat coconut cream, by contrast, is predominantly saturated fat with a very low water fraction, which makes it a good dairy-free swap for desserts and sauces. It also whips beautifully when chilled, giving the mousse its light, airy texture.

Is dark chocolate low in deuterium?

Yes, particularly at 85% cacao or higher. The higher the cacao percentage, the lower the sugar content and the higher the fat content. Milk chocolate and chocolates below 70% cacao contain more sugar and dairy solids.

Can I use a different sweetener?

Yes. Erythritol and monk fruit sweetener are both good choices, as neither adds sugar. Regular sugar, maple syrup, honey and agave all do. If you prefer no sweetener at all, many people enjoy this mousse unsweetened.

Is it safe to eat a mousse made with raw egg?

This mousse contains raw egg, which is not cooked at any stage. Use the freshest eggs you can, keep them refrigerated, and keep the finished mousse refrigerated until serving. Raw and lightly cooked egg can carry a risk of foodborne illness, so this recipe is not suitable for pregnant women, infants, older people or anyone who is immunocompromised. Those groups can replace the egg whites with extra whipped coconut cream.

Can I use DDW in this recipe?

This recipe contains no added water, so the only water present comes from trace amounts within the ingredients themselves. If you add a water-based step, such as a thin ganache to drizzle, use deuterium-depleted water instead of tap water.

Yavelle 25ppm Deuterium-Depleted Water is a packaged food. It is not a therapeutic good and is not intended to diagnose, treat, cure or prevent any disease. Information on this page is general and is not medical advice. If you have a health condition or are undergoing treatment, speak with a qualified health practitioner.