If you love the bright, tangy flavor of classic key lime pie but want a lighter, no-bake dessert, this Gluten-Free Key Lime Pie Mousse is the perfect treat. Made with fresh lime juice, sweetened condensed milk, fluffy whipped cream, and gluten-free graham cracker crumbs, this creamy mousse delivers all the delicious flavors of traditional key lime pie in an elegant individual dessert. It is refreshing, smooth, and incredibly easy to prepare, making it ideal for summer gatherings, holidays, dinner parties, or whenever you are craving a citrusy dessert.
The combination of tart lime and rich cream creates a perfectly balanced flavor, while the gluten-free graham cracker topping adds a delightful crunch that mimics a traditional pie crust. Since this dessert is made ahead of time and chilled until set, it is a stress-free option for entertaining and can be prepared hours before serving.
Prep Time
15 minutes
Chill Time
3 hours
Total Time
3 hours 15 minutes
Servings
4 servings
¾ cup gluten-free graham cracker crumbs
1½ cups heavy whipping cream, very cold
1 teaspoon vanilla extract
1 cup sweetened condensed milk
⅓ cup fresh lime juice
2 teaspoons unflavored gelatin
1 lime, zested
Prepare the Whipped Cream
Pour the chilled heavy whipping cream and vanilla extract into the bowl of a stand mixer fitted with the whisk attachment. Beat on high speed for 5 to 7 minutes, or until stiff peaks form. The whipped cream should be light, fluffy, and able to hold its shape.
Bloom the Gelatin
Place the gelatin in a small bowl with 2 tablespoons of cold water. Allow it to sit for about 5 minutes until it blooms and absorbs the liquid. Microwave for 10 to 15 seconds, just until dissolved. Let cool slightly.
Make the Key Lime Filling
Remove the bowl of whipped cream from the mixer. Add the sweetened condensed milk, fresh lime juice, dissolved gelatin, and half of the lime zest.
Using a rubber spatula, gently fold the ingredients together until fully combined. Take care not to overmix, as this can deflate the whipped cream and reduce the mousse’s airy texture.
Assemble the Mousse
Evenly divide the key lime mousse mixture among four serving glasses, dessert cups, or small jars.
Sprinkle a layer of gluten-free graham cracker crumbs over each serving to create the classic key lime pie crust flavor and texture.
Chill Until Set
Transfer the mousse cups to the refrigerator and chill for at least 3 hours, or until the mousse is firm and fully set.
Garnish and Serve
Just before serving, sprinkle the remaining lime zest over the top of each mousse. For an extra-special presentation, garnish with a thin lime slice, whipped cream, or additional gluten-free graham cracker crumbs.
Serve chilled and enjoy.
For the best flavor, use freshly squeezed lime juice rather than bottled juice.
Key lime juice can be substituted for regular lime juice for a more authentic key lime pie flavor.
Make this dessert up to 24 hours in advance for easy entertaining.
Store covered in the refrigerator for up to 3 days.
For a richer pie-like texture, add an extra ¼ cup of gluten-free graham cracker crumbs to the bottom of each serving glass before adding the mousse.
If desired, garnish with fresh berries, toasted coconut, or white chocolate shavings for additional flavor and visual appeal.
