Soften the cream cheese. Bring it to room temperature for 30–45 minutes. This prevents lumps and helps everything blend smoothly.
Whisk the dairy base. In a medium bowl, add the softened cream cheese and Greek yogurt.
Beat with a hand mixer on medium speed for 1–2 minutes until silky and well combined. Scrape down the sides.
Add flavor and sweetness. Mix in vanilla extract, lemon juice, and a pinch of salt. Start with 1–2 tablespoons of your chosen sweetener, then taste and adjust.
The lemon brightens the flavor like real cheesecake.
Blend in the protein powder. Sprinkle it in gradually while mixing on low. This keeps the texture smooth and avoids clumps. If the mixture gets too thick, add 1–2 tablespoons of milk or a splash of water to loosen it.
Decide on texture. For a classic, fluffy mousse, you’re done.
If you prefer a firmer, sliceable mousse, whisk in your optional thickener: a tiny pinch of xanthan gum, a small amount of instant pudding mix, or bloomed gelatin. Mix just until incorporated.
Chill. Cover and refrigerate for at least 30–60 minutes. Chilling helps the flavors meld and the texture set into a creamy, scoopable mousse.
Serve with toppings. Spoon into cups or bowls.
Top with berries, a sprinkle of crushed graham crackers, or a light drizzle of melted dark chocolate. Keep portions modest—this dessert is satisfying.