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Key Lime Pie Mousse

4.5 from 124 votes
This light, refreshing citrus dessert tastes like your favorite key lime pie, but it's ready in a matter of minutes! Serve in mini dessert dishes for an easy but elegant dessert everyone will rave about!
photo of Danelle, author of Let's Dish
Published on , Updated January 13, 2025
4.5 from 124 votes

This light, refreshing citrus dessert tastes like your favorite key lime pie, but it’s ready in a matter of minutes! Serve in mini dessert dishes for an easy but elegant dessert everyone will rave about!

Key Lime Pie Mousse

Why You’ll Love This Recipe

If you’re a fan of key lime pie, then you’re going to love this Key Lime Pie Mousse! Besides being smooth and creamy, it’s the perfect blend of sweet and tart deliciousness.

Even better, this has to be one of the easiest desserts I’ve ever made! The mousse is made of just 3 simple ingredients that you can whip up in minutes.

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Served this last night at a dinner party. Everyone loved it, a perfect dessert for a hot summer evening and I don’t think I have ever made a dessert recipe as easy as this before.

Ruthie

5-star rating

I like to serve this mousse in mini dessert dishes, but small Mason jars are fun too. Really, any small dessert dishes, bowls, jars, or even drinking glasses will work.

I can get 10-12 small servings from this recipe, but it really depends on the size of serving dish you use.

Key Lime Pie Mousse

For a gluten-free version, simply omit the graham cracker crust–or if you’re like my husband and don’t care for graham cracker crust. It’s always nice to have gluten-free options, and this recipe makes it easy.

This dessert is perfect for any spring celebration, from Easter to Mother’s Day. And it’s so elegant looking and tasty, no one will believe how easy it is to make. 

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This was delicious! So very rich and fruity. I was excited to make it for my St. Pat’s bunco. It was a hit!

Jeni

5-star rating

I like to garnish this mousse with lime wedges, but it’s also pretty and delicious served with fresh berries and mint.

No matter how you serve it up, this Key Lime Pie Mousse is sure to be a hit! Don’t be surprised if you get lots of requests for the recipe.

Be sure to save this recipe to your favorite Pinterest board for later.

Key Lime Pie Mousse

Ingredients

  • Graham cracker crumbs
  • Sugar
  • Butter
  • Heavy cream
  • Sweetened condensed milk
  • Key lime juice
Key Lime Pie Mousse

Key Lime Pie Mousse

This light, refreshing citrus dessert tastes like your favorite key lime pie, but it’s ready in a matter of minutes! Serve in mini dessert dishes for an easy but elegant dessert everyone will rave about!
4.51 from 124 votes
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Course: Desserts
Cuisine: American
Prep Time: 10 minutes
Total Time: 10 minutes
Servings: 10 servings
Calories: 225kcal
Author: Danelle

Ingredients 

  • 2/3 cup graham cracker crumbs
  • 2 teaspoons sugar
  • 2 tablespoons butter melted
  • 2 cups heavy cream
  • 1 14 oz. can sweetened condensed milk
  • 1/2 cup key lime juice

Instructions

  • In a small bowl, mix together graham cracker crumbs, sugar and butter. Divide crumb mixture evenly between 8-12 small dessert glasses.
  • With an electric mixer, beat cream until stiff peaks form.
  • In a separate bowl, whisk together sweetened condensed milk and lime juice until smooth.
  • Fold lime mixture into whipped cream until well blended.
  • Pipe or spoon mixture over graham cracker crumbs. Refrigerate until serving.
  • Garnish with fresh lime wedges, if desired.

Notes

Total time does not include refrigeration.

Nutrition

Serving: 1g | Calories: 225kcal | Carbohydrates: 10g | Protein: 2g | Fat: 20g | Saturated Fat: 13g | Polyunsaturated Fat: 6g | Trans Fat: 1g | Cholesterol: 61mg | Sodium: 62mg | Sugar: 6g
Keep scrolling for tips, ingredient substitutions, answers to frequently asked questions and more!

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22 comments

  • I wonder how far in advance can you make this without it collapsing or separating?

  • Just made this with Mexican limes my husband bought at the supermarket. So delicious! I actually left out the Graham cracker crumbs to save a calorie or two and we loved it.

  • Served this last night at a dinner party. Everyone loved it, a perfect dessert for a hot summer evening and I don’t think I have ever made a dessert recipe as easy as this before.
    Thanks

4.51 from 124 votes (124 ratings without comment)

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photo of Danelle, author of Let's Dish

Hello! I’m Danelle. Thanks for visiting.

At Let's Dish, I'm bringing a taste of uptown foodie to real-life, everyday meals! Here, I share simple, reliable recipes that make mealtime easy.
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