Easy High-Protein Strawberry Mousse

Metric	Details
Prep Time	12 minutes
Cook Time	0 minutes (No-bake)
Chill / Set Time	2 hours
Total Time	2 hours 12 minutes
Difficulty / Intensity	Easy / Low Intensity (Requires basic blending and gentle folding; no stove or oven needed)
Equipment Intensity	Minimal (High-speed blender or food processor, hand mixer, and mixing bowl)
Yield	4 generous servings (approx. ¾ cup each)

Why This High-Protein Mousse Works

Traditional French mousse relies on heavy whipping cream, egg yolks, and melted sugar to trap air and create body. While delicious, a standard serving easily crosses 400 calories with minimal protein. This streamlined version swaps heavy fats for smart dairy proteins that mimic that exact melt-in-your-mouth texture:

• Blended Cottage Cheese + Greek Yogurt Base: Full-fat or 2% cottage cheese blends into a completely smooth, cheesecake-like cream with zero curds. Pairing it with thick Greek yogurt adds tanginess, stability, and a rich casein-and-whey protein punch.

• Fresh or Frozen Strawberries: Blending whole strawberries directly into the base provides natural pectin, vibrant pink color, and authentic fruit sweetness without artificial syrups.

• Whipped Egg Whites (or Unflavored/Vanilla Protein Whip): Folding airy whipped whites into the dense berry cream introduces thousands of microscopic air bubbles, transforming a thick pudding into a true, cloud-like mousse.

• Bloomed Gelatin (Optional Insurance): A tiny amount of unflavored gelatin guarantees the mousse holds sharp peaks in the fridge for up to three days without weeping liquid.

Ingredients

For the Strawberry Protein Base

• 2 cups (300 g) fresh strawberries, hulled and halved (plus 4 extra slices for garnish)

• 1 cup (225 g) 2% or full-fat cottage cheese (small curd blends fastest)

• ¾ cup (180 g) plain non-fat or 2% Greek yogurt (thick, strained style)

• 1 scoop (30 g) vanilla whey-casein blend or pure whey isolate protein powder (optional, boosts protein by 6 g per serving and adds subtle vanilla sweetness)

• 2 to 3 tablespoons pure maple syrup, honey, or zero-calorie monk fruit sweetener, adjusted to berry sweetness

• 1 teaspoon pure vanilla extract

• 1 tablespoon fresh lemon juice (brightens the strawberry flavor and balances dairy richness)

• Pinch of fine sea salt

For the Aerated Lift & Structure

• 3 large pasteurized liquid egg whites (or 3 fresh egg whites at room temperature)

• ¼ teaspoon cream of tartar (stabilizes the whipped whites)

• 1 ½ teaspoons unflavored gelatin powder dissolved in 2 tablespoons warm water (optional, recommended if storing overnight)

Step-by-Step Instructions

1. Prepare and Blend the Strawberry Cream

Place the hulled strawberries, cottage cheese, Greek yogurt, protein powder (if using), maple syrup, vanilla extract, lemon juice, and sea salt into a high-speed blender or food processor. Blend on high for 45 to 60 seconds, scraping down the sides halfway through, until the mixture is completely smooth, glossy, and free of any cottage cheese curds. Taste the puree and adjust sweetness or lemon juice if needed.

2. Incorporate the Gelatin (Optional)

If using gelatin for extra firmness, sprinkle the unflavored gelatin over 2 tablespoons of cool water in a small microwave-safe ramekin and let it sit for 2 minutes to bloom. Microwave for 10 to 12 seconds until completely liquid and clear (do not boil). With the blender running on low speed, drizzle the warm gelatin into the strawberry mixture and blend for 10 seconds until fully incorporated. Transfer the strawberry cream to a large mixing bowl.

3. Whip the Egg Whites to Stiff Peaks

Ensure your mixing bowl and beaters are completely clean and free of any grease or yolk residue. Add the egg whites and cream of tartar to the bowl. Beat with an electric hand mixer on medium-high speed for 2 to 3 minutes until glossy, firm, stiff peaks form—when you lift the beaters straight up, the peaks should stand tall without curling over.

4. Fold Gently to Preserve Air

Add one-third of the whipped egg whites into the bowl of strawberry cream. Use a wide silicone spatula to gently fold the whites in, cutting down the center, sweeping along the bottom, and folding over the top. Once mostly combined, add the remaining egg whites in two batches, folding gently just until no white streaks remain. Do not stir vigorously or use a whisk, as overmixing will deflate the air bubbles.

5. Portion and Chill

Divide the mousse evenly among 4 glass ramekins, dessert cups, or small mason jars. Smooth the tops gently with the back of a spoon, cover lightly with plastic wrap, and refrigerate for at least 2 hours (or overnight) until chilled and lightly set.

6. Garnish and Serve

Just before serving, top each glass with sliced fresh strawberries, a dusting of crushed freeze-dried strawberries, or a few dark chocolate shavings.

Pro Tips, Variations & Storage

• Dairy-Free / Vegan Adaptation: Swap the cottage cheese and Greek yogurt for thick, unsweetened coconut yogurt or silken tofu, use plant-based vanilla protein powder, and whip ½ cup chilled aquafaba (chickpea liquid) with cream of tartar instead of egg whites.

• Food Safety Note on Egg Whites: Because this mousse is no-bake, use carton pasteurized liquid egg whites or pasteurized shell eggs if serving pregnant individuals, young children, or anyone immunocompromised.

• Flavor Twists: Swirl 1 tablespoon of melted dark chocolate into the top of each cup before chilling for a chocolate-covered strawberry profile, or add ½ teaspoon of finely grated lemon zest for a bright cheesecake finish.

• Storage: Store covered in the refrigerator for up to 3 days. Avoid freezing, as dairy and whipped egg whites separate and become icy upon thawing.

Nutrition Information (Per Serving)

Calculated for 1 of 4 servings using 2% cottage cheese, 2% Greek yogurt, 1 scoop vanilla whey protein, and 2 tablespoons maple syrup (excluding optional garnishes).

Nutrient	Amount Per Serving	% Daily Value*
Calories	185 kcal	9%
Total Protein	23.5 g	47%
Total Carbohydrates	14.2 g	5%
Dietary Fiber	1.8 g	6%
Total Sugars	10.5 g	—
Added Sugars	6.0 g	12%
Total Fat	3.2 g	4%
Saturated Fat	1.6 g	8%
Cholesterol	15 mg	5%
Sodium	245 mg	11%
Calcium	140 mg	11%
Potassium	260 mg	6%