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    Home / Recipes / Keto Desserts

    Key Lime Mousse Recipe (Keto, Low-Carb)

    By Lisa MarcAurele on Oct 9, 2020 10 Comments - This post may contain affiliate links. See Disclosure

    16523 shares
    5-Ingredient Recipes Simple Keto Meals Jump to Recipe
    key lime mousse pinterest image
    key lime mousse pinterest image
    Nut-FreeEgg-FreeKid Friendly

    This easy key lime mousse recipe is a quick dessert to prepare. The prep should take less than ten minutes but it needs some time to set in the refrigerator.

    Keto Low Carb Keto Lime Mousse Pintrest Image
    Jump to:
    • 📋 Ingredients
    • 🔪 How to Make Key Lime Mousse
    • 🍽️ Serving suggestions
    • 📚 Related recipes
    • 📖 Recipe

    Mousse is a great dessert because it satisfies a sweet tooth without being too heavy after dinner. Plus, it's such a simple treat to whip up.

    Lots of people buy mixes, but it's just as quick and easy to make it from scratch. That's why I have several recipes on the site.

    This key lime mousse is my latest creation. It came out light and airy with a tart lime flavor.

    You could use the mousse as a base for a keto key lime pie. All you need to do is add your favorite low carb pie crust. The crust used in my no-bake key lime cheesecake recipe is a good option.

    📋 Ingredients

    key lime mousse ingredients

    I created this recipe using my low carb chocolate mousse as a guide. But the unsweetened cocoa is omitted and bottled lime juice is added for flavor.

    Fresh key limes are often difficult to find. That's why I use bottled juice from Nellie & Joe. Regular lime rind can also be used if you can't get key limes.

    Whipping up the heavy cream with a little dissolved gelatin prevents the mousse from flattening. And lime zest is added to enhance the flavor.

    🔪 How to Make Key Lime Mousse

    The recipe comes together in just a few steps. All you need is a good electric mixer that can whip cream to stiff peaks.

    1. Bloom the gelatin by sprinkling it over cold water. After a couple minutes, stir in boiling water to dissolve the gelatin completely.
    2. Whip the cream with the sweetener and lime zest in a large mixing bowl until stiff peaks form.
    3. Beat in the gelatin water slowly as you beat the mixture again until the gelatin is well combined.
    gelatin added

    That's all there is to making this low carb dessert! However, it does take at least an hour or two to set in the refrigerator.

    Although you can chill the mousse in the mixing bowl, I recommend transferring it to individual dessert dishes.

    plain mousse without garnish

    🍽️ Serving suggestions

    The finished keto key lime mousse doesn't have much color. It's fine if you're only making it for quick treats.

    However, if you'd like to dress it up for company, top it off with some stabilized whipped cream, lime zest, and lime slices. It will make a much prettier presentation!

    📚 Related recipes

    key lime mousse in glass dessert dishes

    Mousse is one of my favorite no-bake keto desserts. Here's a few other recipes you may want to try:

    • Raspberry Mousse is another flavor variation for my basic low carb mousse recipe.
    • Keto Cream Cheese Dessert is so quick and easy because it doesn't need to set in the refrigerator.
    • No Bake Banana Split Dessert has been a long time favorite no bake cheesecake dessert.
    • Keto Chocolate Cheesecake Mousse can have the taste of black forest cake by adding in some cherry extract.
    • Irish Cream Cheesecake is a simple treat that whips up quick in small dessert jars.

    ★ FOLLOW ME ON FACEBOOK, PINTEREST, AND INSTAGRAM FOR MORE EASY KETO RECIPES.

    📖 Recipe

    key lime mousse in glass dessert dishes with whipped cream and lime

    Key Lime Mousse

    Author: Lisa MarcAurele
    4.75 from 4 votes
    This mousse is a modified chocolate mousse recipe. Instead of using cocoa, key lime was substituted in. Serve with whipped cream if desired.
    Prep Time10 mins
    Chill Time1 hr
    Total Time10 mins
    Course: Dessert
    Cuisine: American
    Print Pin Review Recipe Save Recipe View Collections Save Recipe
    Servings 8 people
    Calories 309

    Video

    Ingredients

    • 1 envelope grass-fed gelatin about 7 grams or 2 ½ teaspoons
    • ¼ cup cold water
    • ⅓ cup boiling water
    • ½ cup low carb sugar substitute or more to taste (see note)
    • 1 tablespoon lime zest
    • 2 cups cold whipping cream
    • ⅔ cup key lime juice
    US Customary - Metric

    Instructions

    • Sprinkle gelatin over cold water in small bowl; let stand 2 minutes to soften. Add boiling water; stir until gelatin is completely dissolved and mixture is clear. Cool slightly.
    • Combine sweetener and lime zest in large bowl. Add whipping cream and beat with an electric mixer until stiff peaks form.
    • Pour in gelatin mixture and key lime juice. Beat again until well blended.
    • Refrigerate at least two hours or until mousse is set. Store covered in refrigerator.

    Notes

    If you're using a erythritol based sweetener, it can crystallize in the mousse if you add too much. It's not recommended to use more than a half cup of erythritol. For a sweeter mousse, a stevia or monk fruit extract is preferred.

    Low Carb Sweeteners | Keto Sweetener Conversion Chart

    low carb yum simple keto cookbook

    Nutrition

    Calories: 309 | Carbohydrates: 2g | Protein: 25g | Fat: 24g | Saturated Fat: 14g | Cholesterol: 80mg | Sodium: 36mg | Vitamin A: 800IU

    Additional Info

    Net Carbs: 2 g | % Carbs: 2.5 % | % Protein: 30.9 % | % Fat: 66.7 % | SmartPoints: 11
    Values
    Array
    (
        [calories] => 309
        [carbohydrates] => 2
        [protein] => 25
        [fat] => 24
        [saturated_fat] => 14
        [cholesterol] => 80
        [sodium] => 36
        [vitamin_a] => 800
    )
    

    Note on Nutritional Information

    Nutritional information for the recipe is provided as a courtesy and is approximate only. We cannot guarantee the accuracy of the nutritional information given for any recipe on this site. Erythritol carbs are not included in carb counts as it has been shown not to impact blood sugar. Net carbs are the total carbs minus fiber.

    © LowCarbYum.com
    Unauthorized use of this material without written permission from Lisa MarcAurele is strictly prohibited unless for personal offline purposes.
    Single photos may be used, provided that full credit is given to LowCarbYum.com along with a link back to the original content.

    Post updated on October 9, 2020, with new photos and additional recipe information. Originally published on April 21, 2012.

    « Crustless Spinach Cheese Pie - Gluten Free
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    Lisa-Profile

    Lisa MarcAurele has been creating keto friendly recipes since 2010. She enjoys experimenting in the kitchen to create low sugar foods that taste like high carb favorites!

    Lisa's recipes have been featured on popular magazine sites including Fitness, Shape, Country Living, Women's Health, and Men's Health. Her long-awaited cookbook, 5-Ingredient Keto, is also a popular go-to for those on a low-carb lifestyle. Learn more about Lisa....

    Reader Interactions

    Comments

    1. Beemom

      February 16, 2021 at 4:48 pm

      5 stars
      Thank you so much for this recipe. Clear, easy to follow directions. This is so, so good.

      Reply
    2. Kim

      November 15, 2020 at 1:06 pm

      5 stars
      I’m new to Keto recipes and this is the first I’ve tried. I can’t seem to make a recipe without adding something to make it my own. I put graham cracker crumbs on the bottom of each portion and also added cream cheese to the recipe. Really light and delicious. Thank you!

      Reply
    3. Julie

      April 20, 2019 at 11:15 am

      Made this for Easter. It was so good! I left out the lecithin. Thank you. I so enjoy your recipes.

      Reply
      • Lisa MarcAurele

        April 20, 2019 at 2:33 pm

        Lecithin isn't needed and I should just remove it from the recipe as it's a specialty ingredient that isn't easy to find.

        Reply
    4. Emily Kemp

      July 03, 2018 at 10:11 am

      5 stars
      Sounds so yummy, great idea to use key lime pie flavours in a mousse!

      Reply
    5. Sue in CA

      April 22, 2012 at 9:09 pm

      Curious about what size is a single serving? half cup?

      Reply
      • Lisa

        April 29, 2012 at 12:24 pm

        I put them in 1 cup serving dishes and they filled them about 3/4 full.

        Reply
    6. Jeanette

      April 22, 2012 at 12:16 am

      This looks so yummy! Where do I find lecithin granules and do I grind them myself, or buy them that way.

      Reply
      • Zaruhi

        March 03, 2021 at 1:38 am

        Hi, can I use green food color to the mousse?

        Reply
        • Lisa MarcAurele

          March 03, 2021 at 8:57 am

          Yes. You can add some food coloring for a green color.

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