Ingredients
Equipment
Method
- Grease a 9x13-inch pan or line it with parchment.
- Mix crumbs, melted butter, and sugar until evenly moistened. Press firmly into the pan base.
- Chill crust for 15 minutes while preparing the filling.
- Beat cream cheese until smooth and fluffy.
- Add condensed milk, key lime juice, and zest. Beat until silky and slightly thickened.
- Fold whipped cream into the lime mixture gently until light and fully combined.
- Spread filling over chilled crust. Smooth the top evenly with a spatula.
- Refrigerate at least 4 hours or freeze 1 hour for faster setting.
- Top with whipped cream and extra zest if desired. Slice into bars and serve cold.
Notes
For a softer mousse-like texture, chill 4 hours. For firmer bars, chill overnight or freeze briefly before slicing. Freeze tightly wrapped portions for up to 2 months; thaw in the refrigerator. Fresh zest gives the brightest flavor. Add coconut, berries, ginger cookies, or white chocolate for flavor twists. Store covered in the refrigerator up to 5 days.