
An elegant Blackberry Mousse that encapsulates the essence of summer in every bite. This airy dessert combines fresh blackberry purée with whipped cream, resulting in a light and satisfying texture. The deep purple hue and fresh berry flavor make it a sophisticated finish to any meal.
Every time I make this mousse, it reminds me of picking wild blackberries with my grandmother. She taught me that the sweetest berries are the ones that practically fall into your hand - a tip that's crucial for this recipe's success.
Key Ingredients
- Fresh Blackberries: Choose ripe, sweet berries
- Heavy Whipping Cream (36%): Well-chilled
- Pure Vanilla Extract: Never use imitation
- Powdered Sugar: Sifted for smoothness
- Fresh Lemon Juice: Brightens flavor
- Fresh Mint: For garnish
- Pinch of Salt: Enhances berry flavor
Step-by-Step Preparation
- 1. Creating the Berry Purée:
- Start with room temperature berries for optimal flavor. Purée until completely smooth in a blender or food processor. Strain through a fine-mesh sieve, pressing gently to extract juice while leaving seeds behind. Add lemon juice and set aside.
- 2. Preparing the Cream:
- Using a chilled bowl and beaters, whip the heavy cream until soft peaks form. Gradually add sifted powdered sugar and vanilla extract. Continue whipping until stiff peaks form - when beaters are lifted, peaks should hold their shape.
- 3. Folding Technique:
- Add one-third of the whipped cream to the berry purée, folding gently to lighten the mixture. Then fold the lightened purée into the remaining cream using a large rubber spatula. Use gentle, sweeping motions to maintain airiness.
- 4. Setting the Mousse:
- Divide the mousse among serving glasses, leaving room for garnish. Tap the glasses gently to remove air bubbles. Cover with plastic wrap directly touching the surface to prevent skin formation. Chill for a minimum of 2 hours.
- 5. Final Presentation:
- Just before serving, garnish with fresh berries, mint leaves, and optional chocolate shavings. For special occasions, add edible flowers or gold leaf.

The secret to perfect mousse lies in patience and temperature control. My grandmother's wisdom rings true: "Treat whipped cream like a delicate cloud - handle it too much and it disappears."

This Blackberry Mousse represents summer sophistication at its finest. Whether served in elegant glass coupes or rustic mason jars, it never fails to delight guests with its ethereal texture and bright flavor.
Storage and Make-Ahead Success
This mousse can be prepared up to 24 hours in advance, making it perfect for entertaining. Store in airtight containers with plastic wrap pressed directly against the surface to prevent a skin from forming. Individual portions should be covered separately. While the mousse will keep for up to three days, the texture is best within the first 48 hours when the balance between stability and lightness is perfect.
Temperature and Seasonal Variations
During warmer months, I've discovered that chilling the serving glasses beforehand helps maintain the mousse's structure during presentation. For winter entertaining, I often add a touch of spice - a pinch of cardamom or cinnamon - to create a warmer flavor profile. The basic recipe adapts beautifully to any berry in season, though blackberries remain my favorite for their rich color and complex flavor.

Presentation and Pairing Notes
The versatility of this mousse extends to its presentation. Layer it in clear glasses with crushed amaretti cookies for textural contrast, or serve alongside delicate shortbread for an elegant tea-time treat. For dinner parties, I often create a trio of different berry mousses in small glasses, allowing guests to taste the subtle differences between varieties. The key is keeping portions small - about 4 ounces per serving - as the dessert is richer than it appears.
Frequently Asked Questions
- → Can I use frozen blackberries instead of fresh?
- Yes, you can use frozen blackberries. Thaw them first and drain any excess liquid before cooking.
- → What if I don’t have heavy whipping cream?
- You can substitute heavy whipping cream with coconut cream for a dairy-free version, though the texture may differ slightly.
- → How long does the mousse stay fresh?
- The mousse stays fresh for up to 3 days when stored in the refrigerator.
- → Can I freeze the mousse?
- No, freezing will affect the texture of the mousse. It’s best enjoyed fresh.
- → Is this recipe vegan?
- Not as written, but you can make it vegan by using coconut cream instead of heavy whipping cream and adjusting sweeteners accordingly.