Cottage Cheese Key Lime Pie Mousse (High Protein)

March 6, 2025

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Published: Mar 5, 2025 by Cathy Chenard · This post may contain affiliate links. As an Amazon Associate I earn from qualifying purchases.

This cottage cheese key lime pie mousse is a sweet, tangy, and creamy treat ready in five minutes, and perfect for key lime pie lovers!

Cottage cheese key lime mousse topped with lime zest, keto cookie crumbles and sugar-free whipped cream.

This key lime pie mousse is sweet, tangy and packed with refreshing key lime flavor. Made with fresh lime juice, zested lime, blended cottage cheese, sugar-free sweetener, and sugar-free whipped cream, it’s a light and creamy treat that is sure to please key lime pie lovers!

And you do not need to be a fan of cottage cheese to love this dessert! The texture is smooth, airy, and luscious, with just the right balance of sweetness and tanginess that makes key lime pie so irresistible.

It’s made with just five simple ingredients and comes together in about five minutes. You can also top it off with your favorite add-ons like crushed keto cookies, extra lime zest, or a dollop of sugar-free whipped cream for even more indulgence.

Ingredients

Cottage cheese: We use a low-fat cottage cheese (2% milkfat) in this recipe to boost the protein while keeping it creamy and delicious.

Fresh lime juice: Use freshly squeezed lime juice for the best bright, citrusy flavor. Key limes are traditional, but regular limes work just as well.

Zested lime: Lime zest enhances the key lime flavor and adds a fragrant citrus aroma.

Allulose: This sugar-free sweetener provides just the right amount of sweetness without any aftertaste or cooling effect. You can adjust the amount to your desired level of sweetness.

Sugar-free whipping cream: To enhance the flavor and make the mousse lighter, we incorporate zero-sugar whipping cream. We simply use store-bought zero-sugar whipping cream since it’s tasty and low in carbs.

STEP-BY-STEP INSTRUCTIONS

STEP 1: In a food processor, add cottage cheese, fresh lime juice, lime zest and allulose and blend until smooth

STEP 2: Transfer the mixture to a medium bowl and gently fold in the sugar-free whipped cream with a spatula until light and fluffy. Top with crushed keto cookies, more sugar-free whipping cream or extra lime zest if desired.

Blending cottage cheese, lime juice and zest, allulose together in food processor

Folding in sugar-free whipped cream to cottage cheese mixture

Finished key lime mousse topped with lime zest, keto cookie crumbles and sugar-free whipping cream.

How to Store

This mousse is best enjoyed fresh, but it will stay creamy and delicious for a few days. Store in an airtight container in the fridge for up to 2 days. For the best texture, stir before serving or fold in a little extra whipped cream.

More High Protein Desserts

If you try this recipe, we would love to hear your feedback! Leave a comment, rate it, and tag @lowcarbsimplified on your photo of this recipe on Instagram or Facebook. We hope you enjoy this recipe as much as we do!

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