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10/06/2014

Key Lime Mousse Dessert

So, I still have a few dessert recipes to share from my dessert party – and all of them lend themselves well not only to single serving desserts, but also even to bite-sized desserts, like I put together for the party!  You can make this key lime mousse dessert ahead of time for easy serving when you’re entertaining, which is a critical detail for me.  Key lime pie is one of my all-time favorite desserts, but it tends to be a bit heavy – this mousse version is nice and light with all the flavor.  And best of all, it’s no-bake – just a couple minutes on the stove and some whipping is all you need!

Key Lime Mousse Dessert at www.happyhourprojects.com

We juice our own limes for this recipe, and my daughter just LOVES to “help” – but you can use bottled key lime juice if it’s available.  I haven’t looked hard enough to find it, and plus – it’s all part of the bonding time in the kitchen, right? Haha.

#HappiMess is Baking: Dessert Swap Party at www.happyhourprojects.com

If you’re juicing your own, pick up at least an extra lime in case they’re extra small – and they look pretty as garnish, too so an extra won’t go to waste!

5.0 from 10 reviews
Key Lime Mousse Dessert
 
Author:
Happy Hour Projects
Prep time: 30 mins
Total time: 30 mins
Save Print
 
Ingredients
  • 1 c. crushed vanilla wafers (or grahams)
  • ¼ c. melted butter
  • 1 -15 oz. can sweetened condensed milk
  • Juice from 3 key limes (about ½ cup)
  • 1 tsp. Knox gelatine (1/2 an envelope)
  • 1 c. heavy whipping cream
  • 2 Tbsp. sugar
Instructions
  1. Add melted butter to crumbs, and sprinkle into the bottom of your pans or serving bowls. Tamp down with the bottom of a glass to form a crust.
  2. In a separate bowl, mix condensed milk and lime juice together.
  3. In a small saucepan, sprinkle gelatine over ¼ c. cream. Allow it to rest 1-2 minutes, then stir it well over low heat until the gelatine dissolves completely.
  4. Add sugar to the remaining cream, and beat until fluffy while you allow the saucepan mixture to cool.
  5. Slowly add the mixture from your saucepan to the whipped cream, mixing on low. Then, fold the lime mixture in as well until fully blended.
  6. Spoon onto crust(s) and refrigerate for 2-3 hours. Top with whipped cream minutes prior to serving, and optionally, garnish with lime zest and/or lime slices.
3.2.2708

Key Lime Mousse Dessert at www.happyhourprojects.com

You can print the recipe above on a sheet of 8.5×11 paper, or if recipe cards are more your style, I’ve got a free printable to offer you below!  Print this on card stock for best results – I had prepared printable cards for the party, and I’m happy to share them with you guys, too!

Key Lime Mousse Dessert at www.happyhourprojects.com

adrianne signature

Filed Under: Recipes, Sweet Treats Tagged With: Dessert, easy, entertaining, fruity, key lime, lime, make-ahead, mousse

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I love it when you love my work! All tutorials and photos published at Happy Hour Projects are copyrighted. If you would like to feature my tutorial on your website or share it on your social media you may use one photo to feature, as long as you provide a link back to the original post.

If you feature a photo, it may not be accompanied by the project tutorial or recipe, whether in my own words as it originally appears or paraphrased by you. This also includes personal sharing on social media and Pinterest. Publishing multiple photos from a project, or including instructions with an accompanying photo are not permitted and you will be asked to remove them.

I love to share my projects, and my tutorials, recipes, and e-books are ALL free for your personal use. However, photos and ideas that are published to this site are my protected intellectual property. You may print them at home, but please do not copy or distribute them. I also allow all designs to be made and sold at fundraisers, craft fairs, etc. If you are selling a piece made from one or more of my free tutorials in your online shop, I require that you use your own, original photography, and include a link back to my website to credit me as the designer.

I hope you enjoy what you read here, and please be fair when you share!

Reader Interactions

Comments

  1. Pinoy says

    04/18/2026 at 8:46 pm

    This Key Lime Mousse Dessert looks absolutely delicious! I love the idea of a refreshing treat that’s perfect for happy hour. Can’t wait to try this recipe and impress my friends! Thanks for sharing!

    Reply
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    01/29/2026 at 8:43 am

    This Key Lime Mousse looks amazing! I love how light and refreshing it sounds—perfect for a summer treat. Can’t wait to try it out! Thanks for sharing!

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  7. Bunty Game says

    12/23/2025 at 1:02 am

    This Key Lime Mousse sounds absolutely delightful! I love the idea of a light and refreshing dessert. Can’t wait to try it out for my next get-together—perfect for happy hour! Thanks for sharing the recipe!

    Reply
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  9. Happymod says

    10/21/2025 at 2:43 am

    This Key Lime Mousse looks absolutely delicious! I can’t wait to try making it for my next gathering. The combination of tartness and creaminess sounds like the perfect summer treat. Thanks for sharing such a fun recipe!

    Reply
  10. Prostavive Buy prostavive Get prostavive says

    10/15/2025 at 5:17 pm

    This Key Lime Mousse Dessert looks absolutely delicious! I love the idea of a light and refreshing treat for happy hour. Can’t wait to try this recipe at home—thanks for sharing!

    Reply
  11. Ashley Martinez says

    10/15/2025 at 1:37 am

    Oh man, I totally feel your frustration! I clicked on what I thought was going to be an amazing key lime mousse recipe just last week and ended up staring at legal jargon too. Super disappointing when you’re craving that perfect tart-sweet dessert fix!

    Since we’re both hunting for good key lime mousse recipes, I found this solid one during my own search: mix condensed milk, lime juice (fresh is best!), and zest, then fold into whipped cream. Chill for 4 hours – game changer! Though I’m still tweaking the lime-to-sweet ratio personally.

    Have you tried making mousse before? I’d love to compare notes on getting that ideal light-but-creamy texture. Maybe we can help each other avoid more recipe dead-ends like this webpage!

    Reply
  12. Spotify Premium App says

    10/03/2025 at 4:29 pm

    This Key Lime Mousse looks absolutely delicious! I can’t wait to try making it for our next gathering. The blend of tart and sweet is just perfect for a refreshing dessert. Thanks for sharing such a delightful recipe!

    Reply
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    10/03/2025 at 12:30 pm

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  15. Nervecalm Buy Nervecalm Get Nervecalm says

    10/02/2025 at 9:57 pm

    This Key Lime Mousse Dessert sounds absolutely divine! I love how refreshing and light it looks, perfect for warm days. Can’t wait to try making it for my next gathering. Thanks for sharing this recipe!

    Reply
  16. David Kim says

    10/01/2025 at 4:22 am

    Hey, I noticed the title mentions a key lime mousse dessert, but the content seems to be about terms of service and copyright. Was this a mix-up or maybe a placeholder? I’d be curious to see the actual dessert recipe if it’s available. Key lime mousse sounds like something I’d love to try making at home. Do you have any tips for balancing the tartness of key lime with the sweetness in desserts? I find that can be tricky.

    Reply
  17. Goa Game App says

    10/01/2025 at 12:29 am

    This Key Lime Mousse sounds absolutely delightful! I love how light and refreshing it looks—perfect for a summer gathering. I can’t wait to try this recipe at my next get-together. Thanks for sharing!

    Reply
  18. daman club says

    09/07/2025 at 9:10 pm

    This Key Lime Mousse sounds absolutely delightful! I love the idea of a light and refreshing dessert, especially for warmer days. Can’t wait to try this recipe and impress my friends at our next gathering! Thanks for sharing!

    Reply
  19. a22 game login says

    08/19/2025 at 1:46 pm

    This Key Lime Mousse looks absolutely delicious! I love the light and refreshing flavors of key lime, and the mousse texture is such a fun twist. I can’t wait to try this recipe for my next gathering! Thanks for sharing!

    Reply
  20. ri188 says

    08/12/2025 at 5:49 am

    This Key Lime Mousse sounds absolutely delicious! I love how refreshing it is, perfect for summer. Can’t wait to try making it for my next get-together! Thanks for sharing the recipe!

    Reply
  21. Aretabet Hoki Gacor Maxwin says

    07/24/2025 at 9:38 pm

    This article has me absolutely craving Key Lime Mousse! The description sounds incredibly light, tangy, and refreshing – the perfect dessert for a warm day or anytime you need a burst of sunshine. I’m definitely going to try this recipe!

    Reply
  22. dm game says

    06/01/2025 at 11:35 pm

    This Key Lime Mousse sounds absolutely delicious! I love the idea of a light and refreshing dessert for a warm day. Can’t wait to try this recipe for my next gathering—perfect for impressing my friends! ??

    Reply
  23. DriveMad Game says

    05/26/2025 at 10:37 pm

    Thanks a lot…Really Amazing Happy and Delicious Recipe!!

    Reply
  24. Drift Boss says

    05/09/2025 at 6:42 am

    Thank you, blogger, for sharing. The content is really wonderful.

    Reply
  25. TextLen says

    02/05/2025 at 10:25 pm

    I can confirm that this is AMAZING. Definitely one of my new favorite desserts! I’ll try it tonight!

    Reply
  26. sbdownloader says

    12/22/2024 at 8:53 am

    I absolutely love the idea of a Key Lime Mousse as a refreshing dessert! The combination of tangy lime and creamy texture sounds perfect, especially for warm evenings. Can’t wait to try this for my next gathering—thanks for sharing this delicious recipe!

    Reply
  27. NetMirror says

    12/21/2024 at 5:28 am

    Thanks a lot…Really Amazing Happy and Delicious Recipe!!

    Reply
  28. Uno Online says

    04/17/2024 at 3:30 am

    Thank u for always including the complete written recipe right under the post! Much appreciated. Love this refreshing lime dessert.

    Reply
    • traffic rally says

      04/17/2025 at 10:31 pm

      You’re very welcome! I’m glad you appreciate the complete recipes. It’s always great to have everything in one place for easy reference. Enjoy making the refreshing lime dessert; it’s a perfect treat for any occasion! Happy cooking!

      Reply
  29. Sandy Randle says

    04/17/2019 at 6:09 pm

    how many servings does this make?

    Reply
  30. Amy Talley says

    07/31/2018 at 5:59 pm

    How many does this make?

    Reply
  31. Glenda says

    05/03/2018 at 4:40 pm

    East, cool, Florida, summertime desserts.
    Awesom, thank you !
    Glenda

    Reply
  32. Crystal says

    10/06/2014 at 11:05 pm

    So delicious!! You’re helper is adorable!!

    Reply
  33. Brittany says

    10/06/2014 at 3:06 pm

    I can confirm that this is AMAZING. Definitely one of my new favorite desserts!

    Reply
  34. Marilyn says

    10/06/2014 at 11:22 am

    Adrianne, I LOVE the flavor of lime and in a mousse…mmmmm! I also love how serious your sous chef is! :D

    Reply

Trackbacks

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Hello, and welcome! I'm Adrianne, an artist, author, designer, and blogger in mid Michigan. I work from home, chase my two kids, and this once-city-girl is learning how to care for chickens and adjusting to life out in the country. I have a compulsion for daily creativity... sometimes it's jewelry-making, paper crafting, metal stamping, mixing and baking, or giving new life to recycled items. But with 2 young kids, time is short! My goal here at Happy Hour Projects is to share projects and tips that you can do in an hour or less. The ideas you find here are designed to add a little creativity in your day, no matter how much (or how little) time you have!

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