7-Leaves Sea Cream Recipe: Silky Seafood Mousse With Citrus Zest

This 7-leaves sea cream recipe transforms delicate seafood into a silky, citrus-kissed mousse that feels luxurious yet remains approachable for home cooks. The secret lies in blending tender fish or shellfish with velvety cream and a whisper of lemon zest—no heavy cream or complicated techniques required.

I developed this dish after years of perfecting seafood textures, ensuring every bite delivers that perfect balance of richness and brightness.

The foundation begins with a light velouté base made from fish stock and butter, which creates the signature creaminess without heaviness. Fresh seafood—like scallops or halibut—is poached just until tender, then blended until smooth, while the citrus zest infuses subtle brightness.

A touch of 7-leaves herb blend (or parsley, chervil, and tarragon) adds aromatic depth that elevates the dish beyond ordinary seafood creams.

What you’ll achieve is a plated masterpiece: a silky, pale mousse with a delicate sheen, topped with crisp citrus zest and fresh herbs. The texture is light yet satisfying, with each spoonful offering layers of seafood flavor and citrus freshness.

This recipe is ideal for special occasions or impressing guests—it takes about 45 minutes but feels effortless once you master the technique.

Serve chilled or at room temperature, paired with crusty bread or a crisp white wine. The dish holds well for 24 hours, making it perfect for meal prep or entertaining. Let’s create this elegant yet accessible seafood delight—your taste buds will thank you.

Ingredients for 7 leaves sea cream

Elegant seafood mousse with velvety texture and citrus brightness—just 12 ingredients transform ordinary seafood into a restaurant-worthy delight.

The seafood is the star, so quality matters. Whole Foods or local fish markets carry the best scallops and halibut—look for bright color and firm texture. I always buy day-boat scallops when possible, but frozen works in a pinch (thaw overnight in the fridge). The 7-leaves herb blend (parsley, chervil, tarragon) is key—fresh is non-negotiable for that signature aroma. If you can’t find it, mix equal parts of each herb. For the fish stock, Knorr or Pacific brand are reliable if you’re not making your own.

No scallops? Shrimp or cod works beautifully—just adjust cooking time to avoid overcooking. Heavy cream substitutes? Coconut cream for dairy-free, but texture will differ slightly. The lemon zest can be swapped for orange zest if you prefer a sweeter note. For the butter, European-style has more flavor, but regular unsalted works fine. Always strain the lemon juice—pulp makes the mousse grainy. The fish stock can be replaced with white wine or extra seafood broth if needed, but reduce by half first.

This mousse keeps beautifully—24 hours in the fridge with a thin layer of plastic wrap pressed directly on the surface to prevent a skin. For plating, use ring molds if you want perfect shapes, or simply spoon into bowls. The garnish of whipped cream and microgreens should go on right before serving. If making ahead, whip the cream separately and add it last. Serves 4 elegantly, but leftovers reheat well for quick lunches—just warm gently and garnish again.

Step-by-step instructions for silky seafood mousse with citrus zest

This delicate seafood mousse delivers restaurant-quality texture and flavor at home.

Pat the 1.5 lb fresh scallops and 1 lb halibut fillets completely dry with paper towels—this is crucial for removing excess moisture that could dilute your mousse. Cut the halibut into ¼-inch chunks and set both proteins aside in a single layer on a plate. Cover loosely with plastic wrap and refrigerate for 30 minutes to chill completely before cooking.

In a medium saucepan, combine the 1.5 cups fish stock and bring to a gentle simmer over medium heat. Once simmering, add the chilled seafood and cook for exactly 2 minutes—this brief poaching preserves texture while extracting delicate flavors. Immediately drain the seafood through a fine-mesh strainer and press gently with a spatula to remove all liquid. Transfer the cooked seafood to a food processor and pulse until completely smooth, scraping down the sides as needed.

In a separate heatproof bowl, combine the 1.5 cups cold heavy whipping cream and 0.5 cup unsalted butter cut into small cubes. Place this bowl over a saucepan of simmering water (bain-marie) and heat gently, stirring constantly with a wooden spoon, until the butter melts and the mixture reaches 160°F—just below a simmer. Remove from heat immediately and let cool slightly for 5 minutes to prevent curdling when combined with the seafood.

With the food processor running, slowly pour the warm cream-butter mixture through the feed tube into the seafood purée. Process for 1 minute until completely smooth and homogeneous. This step creates the velvety texture that defines sea cream. Taste and adjust seasoning with 0.5 tsp diamond crystal kosher salt and 0.25 tsp freshly cracked white peppercorns, then stir in the 2 tbsp 7-leaves herb blend and 2 tbsp fresh lemon juice. The mixture should be perfectly balanced—bright from the citrus, herbaceous from the blend, and properly seasoned.

Transfer the seafood mixture to a mixing bowl and let it cool to room temperature, stirring occasionally to prevent a skin from forming. Once cool, use a rubber spatula to fold in the 1 tbsp lemon zest and the 0.25 cup chilled heavy cream for garnish that has been lightly whipped to soft peaks. This final incorporation adds both brightness and airiness to the mousse. The texture should be luxuriously smooth yet light enough to pipe elegantly.

For optimal results, divide the finished mousse among 4 small ramekins or serving dishes. Cover each with plastic wrap pressed directly onto the surface to prevent skin formation, and refrigerate for at least 4 hours—preferably overnight. This resting period allows flavors to meld completely and the texture to set properly.

Before serving, carefully remove the plastic wrap and smooth the tops of the mousse with an offset spatula. Pipe a delicate swirl of additional whipped cream around the edges of each serving dish for visual appeal. Sprinkle evenly with the 0.25 cup microgreens, focusing on the center where they’ll provide a pop of fresh color and subtle peppery contrast.

The mousse should be served immediately after removing from the refrigerator—its silky texture is best when slightly softened. Each bite should deliver a perfect balance of briny seafood, creamy richness, and bright citrus notes. For an extra touch, serve with crispy fried shallots or a drizzle of reduced fish stock for enhanced depth of flavor.

Dietary considerations for this dish

Pescatarian Perfection

This recipe is a dream for pescatarians—it delivers rich, creamy seafood flavor without any meat or dairy substitutes. The foundation uses scallops and halibut as the protein base, both naturally high in omega-3 fatty acids and lean protein.

The velouté technique creates that signature sea cream texture without heavy cream or butter overload, making it lighter than traditional seafood dishes. 🦪

Dairy-Free Adaptations

For a dairy-free version, swap the heavy whipping cream and butter for coconut cream (chilled overnight) and vegetable shortening—though texture will be slightly denser. I recommend using full-fat coconut cream for best results, and reduce the fish stock by ¼ cup to compensate for coconut’s natural richness.

The citrus zest remains key for brightness in dairy-free adaptations.

Allergen-Friendly Options

This recipe is naturally gluten-free and nut-free, but always double-check your fish stock for hidden additives. For shellfish-free versions, replace scallops with cod or mahi-mahi—these milder fish work beautifully in the same preparation.

If you’re avoiding dairy entirely, use aquafaba (chickpea brine) whipped to stiff peaks for garnish instead of cream. The 7-leaves herb blend can be made completely allergen-free by using basil and dill instead of tarragon.

Low-Calorie Adjustments

To reduce calories without sacrificing flavor, use light cream cheese (blended smooth) instead of heavy cream and butter, and increase the lemon juice to 3 tbsp for extra brightness. The fish stock remains the same, but you can reduce it by ½ cup to cut back on sodium.

For garnish, skip the whipped cream and use edible flowers or a sprinkle of toasted sesame seeds instead. The texture will be lighter, but the citrus-herb profile keeps it satisfying.

Keto-Friendly Version

This recipe is naturally keto-friendly when prepared with full-fat dairy and no sugar additions. Stick to the original measurements but omit any bread-based serving suggestions. For extra richness, add 1 tbsp mascarpone cheese to the final mixture.

The scallops and halibut are both excellent keto protein sources, and the lemon zest provides acidity without carbs. Just be mindful of portion sizes—each serving contains about 250 calories with the original ingredients.

Frequently asked questions