Elegant frozen strawberry mousse is the make-ahead dessert I pull out all summer. Strawberries, whipped cream, and pasteurized egg whites freeze into a pale pink cloud set with gelatin, and a splash of orange liqueur keeps it from being innocent. It spends most of its life in the freezer, which is exactly the point.
Welcome to your new favorite warm-weather dessert! This Frozen Strawberry Mousse is the epitome of elegance and simplicity. Imagine a cloud-like dessert that’s bursting with the vibrant, sweet flavor of fresh strawberries, with a subtle hint of citrusy warmth. It’s light, intensely fruity, and melts in your mouth in the most delightful way. This no-bake recipe is perfect for making ahead, leaving you free to enjoy the sunshine. Whether you’re hosting a dinner party or just craving a sophisticated treat, this beautiful mousse is guaranteed to impress.
Ingredients
• 1.5 lbs / 680g (24 oz) fresh strawberries, plus extra for garnish
• 1.5 cups / 300g granulated sugar, divided
• 1 tbsp / 10g unflavored gelatin powder
• 0.5 cup / 120ml cold water
• 1 cup / 240ml heavy whipping cream
• 0.5 cup / 120ml pasteurized egg whites, from about 4 large eggs
• 1 pinch of salt
• 1/3 cup / 80ml Triple Sec or curaçao
Instructions
1. Hull and wash the strawberries. Place them in a blender and purée until completely smooth. For an extra-silky texture, press the purée through a medium-fine sieve to remove the seeds. Stir 1 cup (200g) of the sugar into the purée and set aside.
2. In a small saucepan, sprinkle the gelatin over the cold water and let it sit for 5 minutes to soften, or ‘bloom’. Place the saucepan over low heat and warm gently, stirring constantly, until the gelatin is completely dissolved. Do not let it boil. Add the remaining 0.5 cup (100g) of sugar and continue to stir over low heat until the liquid is clear.
3. Remove the gelatin mixture from the heat and stir it into the strawberry purée. Transfer the mixture to the refrigerator to cool until it just begins to thicken to the consistency of raw egg whites. Check it every 10 minutes, as it can set quickly once it starts to cool.
4. While the strawberry mixture chills, whip the heavy cream in a separate bowl until it forms fairly stiff peaks. In another clean bowl, beat the egg whites with a pinch of salt until they form stiff, glossy peaks.
5. Once the strawberry purée has started to thicken, remove it from the fridge. Immediately stir in the Triple Sec or curaçao. Gently fold in the whipped cream using a large spatula, followed by the beaten egg whites, until just combined. Be careful not to overmix and deflate the mixture.
6. Carefully spoon the mousse into a lightly oiled 6-cup charlotte mold or into 8-10 individual serving dishes. Place in the freezer for at least 4 to 6 hours, or until firm.
7. To serve, unmold the charlotte onto a platter or serve in the individual dishes. If the mousse is frozen solid, let it sit at room temperature for 15-20 minutes to soften slightly. Garnish generously with fresh strawberries before serving.
Nutritional Information
• Disclaimer: The following is an estimate per serving, based on 10 servings.
• Calories:** 285 kcal
• Carbohydrates:** 32g
• Protein:** 4g
• Fat:** 14g
• Sugar:** 30g
Pro Tips
• For a non-alcoholic version, simply replace the Triple Sec with an equal amount of fresh orange juice and 1 teaspoon (5 ml / 0.2 fl oz) of orange zest.
• Use pasteurized egg whites for a no-fuss, food-safe option, as the eggs in this recipe are not cooked.
• To maintain a light and airy texture, use a large, flexible spatula to gently fold the whipped cream and egg whites into the strawberry base until just combined.
• For easy individual servings, freeze the mousse in silicone muffin cups. You can pop them out easily and place them directly onto serving plates.
FAQ
Q: Is this strawberry mousse recipe truly vegetarian
A: This recipe uses traditional gelatin, which is derived from animal products. To make it 100% vegetarian, you can substitute the 1 tablespoon (15 ml / 0.5 fl oz) of gelatin powder with an equal amount of agar-agar powder. Always prepare agar-agar according to its specific package directions, as the method can differ slightly from gelatin.
Q: Can I make this frozen strawberry mousse vegan
A: Yes, you can adapt this recipe to be vegan with a few key substitutions. Use a vegetarian gelling agent like agar-agar instead of gelatin. Replace the heavy whipping cream with the solid cream from a chilled can of full-fat coconut milk. For the egg whites, use an equivalent amount of aquafaba (the liquid from a can of chickpeas) and whip it to stiff peaks.
Q: What is a good non-alcoholic substitute for Triple Sec
A: For a delicious non-alcoholic version, simply replace the 1/3 cup (720 ml) of Triple Sec with an equal amount of fresh orange juice. The recipe’s pro-tips also suggest adding 1 teaspoon (5 ml / 0.2 fl oz) of orange zest to enhance the citrus flavor.
Q: How long can I store this frozen mousse
A: This frozen strawberry mousse stores beautifully. Keep it in a well-sealed, freezer-safe container for up to one month. To achieve the best melt-in-your-mouth texture, allow it to sit at room temperature for 15-20 minutes before serving.
Pro Tips
- For a non-alcoholic version, simply leave out the Triple Sec or curaçao — the strawberries carry the dessert on their own.
- Use pasteurized egg whites straight from the carton, as the recipe calls for — they whip reliably and remove any raw-egg worry.
- To keep the texture light and airy, fold the whipped cream and whites gently and briefly; stirring knocks the air right back out.
- For easy individual servings, freeze the mousse in single-portion cups or molds rather than one large container.
Frequently Asked Questions
How long does frozen strawberry mousse keep?
Covered airtight in the freezer, it holds beautifully for a couple of weeks. Thaw it briefly in the fridge before serving.
How do I serve frozen mousse?
Move it to the fridge a little while before serving so the edges soften to a spoonable cloud, then portion directly from the mold or cups.
Why is my mousse icy instead of creamy?
The cream or whites lost volume before freezing — fold gently and get it into the freezer promptly so ice crystals stay small.
Can I use frozen strawberries instead of fresh?
Fresh strawberries are worth it here for both the color and the clean flavor; thawed frozen berries bleed juice and dull the pink.
Recipe card below.
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Elegant Frozen Strawberry Mousse
Ingredients
Method
- Hull and wash the strawberries.
- Place them in a blender and purée until completely smooth. For an extra-silky texture, press the purée through a medium-fine sieve to remove the seeds.
- Stir 1 cup (200g) of the sugar into the purée and set aside.
- In a small saucepan, sprinkle the gelatin over the cold water and let it sit for 5 minutes to soften, or 'bloom'.
- Place the saucepan over low heat and warm gently, stirring constantly, until the gelatin is completely dissolved.
- Do not let it boil.
- Add the remaining 0. 5 cup (100g) of sugar and continue to stir over low heat until the liquid is clear.
- Remove the gelatin mixture from the heat and stir it into the strawberry purée.
- Transfer the mixture to the refrigerator to cool until it just begins to thicken to the consistency of raw egg whites.
- Check it every 10 minutes, as it can set quickly once it starts to cool.
- While the strawberry mixture chills, whip the heavy cream in a separate bowl until it forms fairly stiff peaks.
- In another clean bowl, beat the egg whites with a pinch of salt until they form stiff, glossy peaks.
- Once the strawberry purée has started to thicken, remove it from the fridge. Immediately stir in the Triple Sec or curaçao. Gently fold in the whipped cream using a large spatula, followed by the beaten egg whites, until just combined. Be careful not to overmix and deflate the mixture.
- Carefully spoon the mousse into a lightly oiled 6-cup charlotte mold or into 8-10 individual serving dishes.
- Place in the freezer for at least 4 to 6 hours, or until firm.
- To serve, unmold the charlotte onto a platter or serve in the individual dishes. If the mousse is frozen solid, let it sit at room temperature for 15-20 minutes to soften slightly.
- Garnish generously with fresh strawberries before serving.
