Key Lime Layered Mousse Cake

By AislePrompt Editorial · ·

How this recipe was made — this recipe was drafted by AislePrompt's AI-assisted pipeline from technique templates and USDA-sourced nutrition data, and published by AislePrompt Editorial — see how AislePrompt recipes are developed and reviewed.

A refreshing, tangy key lime mousse layered atop a crunchy graham cracker crust, perfect for a bright and zesty dessert. This American-inspired recipe, ready in about 30 minutes, layers graham cracker crumbs, unsalted butter, granulated sugar into a dessert worth slowing down for — great for weekend baking, holiday tables, or any time you want a sweet payoff at the end of a meal. Each serving lands at about 320 calories and feeds 10, so it slots into a weekend bake or a special-occasion dessert tray. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.

Prep: 20 min Cook: 10 min Serves 10 American cuisine 320 cal/serving
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Ingredients

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Instructions

  1. Step 1: Preheat oven to 350°F. In a mixing bowl, combine 1 1/2 cups graham cracker crumbs, 6 tbsp melted unsalted butter, and 1/4 cup granulated sugar. Stir until the mixture resembles wet sand.
  2. Step 2: Press the crust mixture firmly into the bottom of a 9-inch springform pan and bake for 8-10 minutes until set and fragrant. Remove and cool.
  3. Step 3: In a large bowl, beat 8 oz softened cream cheese until smooth, then gradually add 14 oz sweetened condensed milk, mixing well.
  4. Step 4: Stir in 1/2 cup fresh key lime juice until the mixture thickens slightly, about 2 minutes.
  5. Step 5: In a separate bowl, whip 1 cup heavy whipping cream with 1/4 cup powdered sugar to soft peaks.
  6. Step 6: Gently fold the whipped cream into the key lime mixture until fully combined and smooth.
  7. Step 7: Pour the mousse over the cooled crust and smooth the top. Refrigerate for at least 4 hours or overnight until firm.
  8. Step 8: Garnish with 1 tsp lime zest before serving.

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