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Creamy Blackberry Lime Mousse Cheesecake Bars

Blackberry Lime Mousse Cheesecake Bars - featured image

These easy homemade cheesecake bars feature a buttery graham cracker crust, a tangy lime-infused cheesecake layer, and a cloud-like blackberry mousse topping. Perfect for summer gatherings, potlucks, or a sweet treat any night of the week.

Ingredients

Scale
  • 1 1/2 cups graham cracker crumbs
  • 6 tbsp unsalted butter, melted
  • 2 tbsp granulated sugar
  • Pinch of salt
  • 12 oz cream cheese, softened
  • 1/2 cup granulated sugar
  • 2 large eggs, room temperature
  • 1 tsp vanilla extract
  • 1 tsp lime zest
  • 2 tbsp lime juice
  • 1/3 cup sour cream (or Greek yogurt)
  • 1 1/2 cups fresh or frozen blackberries (thawed if frozen)
  • 1/4 cup granulated sugar
  • 1 cup heavy whipping cream, cold
  • 4 oz cream cheese, softened
  • 2 tbsp lime juice
  • 1/2 tsp lime zest
  • 1 1/2 tsp powdered gelatin (or 1 envelope unflavored)
  • 2 tbsp cold water
  • Extra blackberries (for garnish)
  • Lime slices or zest curls (for garnish)
  • Whipped cream (for garnish)

Instructions

  1. Line an 8×8-inch baking pan with parchment paper, leaving overhang for easy lifting.
  2. Preheat oven to 325°F (163°C).
  3. In a medium bowl, combine graham cracker crumbs, melted butter, sugar, and a pinch of salt. Mix until evenly moistened.
  4. Press mixture firmly into the prepared pan. Bake for 10 minutes, then cool.
  5. In a large bowl, beat cream cheese until smooth. Add sugar and beat until fluffy.
  6. Mix in eggs one at a time, then add vanilla, lime zest, lime juice, and sour cream. Blend until smooth.
  7. Pour cheesecake batter over cooled crust and smooth the top.
  8. Bake at 325°F for 25-28 minutes, until set but slightly jiggly in the center. Cool completely at room temperature, then chill in the fridge for at least 1 hour.
  9. Sprinkle gelatin over cold water in a small bowl and let stand 5 minutes to bloom.
  10. Purée blackberries with sugar and lime juice in a blender or food processor.
  11. Warm the blackberry purée in a small saucepan over low heat until steaming, then whisk in bloomed gelatin until dissolved.
  12. Strain mixture through a fine mesh sieve to remove seeds (optional). Cool to room temperature.
  13. Beat cold whipping cream to stiff peaks in a clean bowl.
  14. In another bowl, beat cream cheese until smooth. Stir in cooled blackberry mixture and lime zest.
  15. Gently fold whipped cream into the blackberry mixture until no streaks remain.
  16. Spread blackberry mousse evenly over chilled cheesecake layer.
  17. Cover and chill bars at least 4 hours or overnight to set.
  18. Lift bars from pan using parchment. Cut into squares, wiping knife between cuts for clean edges.
  19. Garnish with extra blackberries, lime slices, or whipped cream before serving.

Notes

For best results, use room temperature ingredients and full-fat dairy. Chill bars for at least 4 hours to set the mousse. Wipe your knife between cuts for clean slices. Gluten-free and dairy-free adaptations are possible. Bars taste even better on day two as flavors meld.

Nutrition

Keywords: cheesecake bars, blackberry lime, mousse dessert, summer dessert, easy cheesecake, homemade bars, potluck dessert, picnic treat