What is keto key lime pie mousse?

Keto key lime pie mousse is a low-carb, creamy dessert inspired by the traditional key lime pie. This delightful treat typically features a blend of healthy fats, such as cream cheese and whipped heavy cream, sweetened with a keto-friendly sweetener. The mixture is infused with fresh lime juice, creating a tart yet sweet flavor reminiscent of the classic pie, but without the high carbohydrate count.

Is keto key lime pie mousse difficult to make?

No, making keto key lime pie mousse is quite simple! The recipe usually involves just a few easy steps: mixing the ingredients until smooth, folding in whipped cream for a light texture, and chilling the dessert to allow the flavors to meld. It is an excellent choice for those who may be new to low-carb baking or cooking, as it requires no complex techniques.

How can I make this dessert more visually appealing?

To enhance the visual appeal of your keto key lime pie mousse, consider serving it in individual glasses or jars. You can also garnish each serving with lime zest, whipped cream, or even a fresh mint leaf for a pop of color. Adding crushed nuts or a sprinkle of graham cracker crumbs can mimic the pie crust and make the dessert look inviting.

Can this mousse be prepared in advance?

Yes, one of the great aspects of keto key lime pie mousse is that it can be made ahead of time. In fact, refrigerating it for a few hours, or even overnight, can help improve the flavors and texture. Just be sure to store it in an airtight container to keep it fresh until you're ready to serve.

Is this dessert suitable for a gluten-free diet?

Absolutely! Keto key lime pie mousse is inherently gluten-free, as it typically contains no grains or gluten-based ingredients. This makes it an excellent treat for those who are sensitive to gluten or have celiac disease, allowing more people to enjoy this delicious dessert.

What can I substitute for ingredients if I don’t have them on hand?

If you find yourself missing some ingredients, there are several substitutions you can use. For example, if you don’t have cream cheese, mascarpone cheese can work as an alternative. In place of lime juice, lemon juice can provide a similar tartness. Additionally, a different low-carb sweetener can be used if your favorite one isn't available, just be sure to adjust the amount based on its sweetness level.

Keto Key Lime Pie Mousse: A Creamy Low-Carb Delight (2025)

Ingredients

Scale

1 cup heavy whipping cream
4 oz cream cheese, softened
1/4 cup fresh key lime juice (or bottled, no sugar added)
2–3 tbsp powdered erythritol (or preferred keto sweetener)
1 tsp vanilla extract
Zest of 1 lime (optional)
Pinch of salt

Instructions

Whip the cream: In a mixing bowl, beat the heavy cream until stiff peaks form. Set aside.
Cream the base: In another bowl, blend cream cheese until smooth. Add lime juice, sweetener, vanilla extract, and a pinch of salt. Mix until fully combined.
Fold together: Gently fold the whipped cream into the cream cheese mixture until smooth and fluffy.
Chill: Spoon into serving cups and refrigerate for 30–60 minutes for best texture.
Garnish and serve: Top with lime zest, whipped cream, or toasted coconut before serving.

Notes

Add a keto graham-style crust layer using crushed almonds, butter, and cinnamon if desired.

Adjust lime juice or sweetener to taste.

Use coconut cream instead of dairy cream for a dairy-free version.

Prep Time: 10 minutes
Cook Time: 30–60 minutes
Category: Keto Desserts
Cuisine: American, Low-Carb

Nutrition

Calories: 260–280
Fat: 26g
Carbohydrates: 3g
Protein: 4g