Why You’ll Love Key Lime Pie Bars Recipe
These bars are rich, refreshing, and perfectly balanced between sweet and tart. The macadamia nuts add a buttery crunch to the crust, while the creamy lime filling sets beautifully after chilling. They are great for parties, holidays, summer desserts, or anytime you want a bright citrus treat that can be made ahead.
Ingredients
(Tip: You’ll find the full list of ingredients and measurements in the recipe card below.)
1 cup graham cracker crumbs
1/3 cup macadamia nuts
6 tbsp salted butter, melted
1 tbsp granulated sugar
4 ounces cream cheese, softened
4 large egg yolks, at room temperature
One 14-ounce can sweetened condensed milk
2 tbsp lime zest
1/2 cup + 2 tbsp fresh lime juice
1 tsp vanilla extract
1/2 cup cold heavy cream
1 tbsp powdered sugar
1 tbsp vanilla extract
Extra lime zest and/or slices for garnish
Directions
Preheat the oven to 350°F. Spray a 9×9-inch baking pan with nonstick spray or line it with parchment paper.
Finely chop the macadamia nuts using a food processor or by hand. In a medium bowl, stir together the graham cracker crumbs, chopped macadamia nuts, melted butter, and granulated sugar. Press the mixture evenly into the prepared pan. Bake for 9 minutes.
While the crust bakes, beat the softened cream cheese until creamy. Add the egg yolks and mix just until combined. Add the sweetened condensed milk, lime zest, lime juice, and vanilla extract. Mix until smooth, scraping down the sides of the bowl as needed.
Pour the filling over the warm par-baked crust. Bake for 22 to 24 minutes, until the bars look just set with only a slight hint of browning around the edges.
Let the bars cool completely at room temperature. Cover and chill in the refrigerator for at least 4 hours, or up to 48 hours, before serving.
When ready to serve, make the whipped cream. Add cold heavy cream, powdered sugar, and vanilla extract to a large bowl. Beat on medium-high speed until stiff peaks form, being careful not to overmix.
Slice the chilled bars, top each piece with whipped cream, and garnish with lime zest or lime slices.
Servings and timing
This recipe makes 9 servings.
Total time: 52 minutes
Prep time: about 20 minutes
Bake time: 31 to 33 minutes
Chilling time: at least 4 hours
Variations
Use regular limes if key limes are not available. You can also swap the macadamia nuts for pecans, almonds, or leave the nuts out completely for a simpler graham cracker crust.
For extra coconut flavor, add a little toasted coconut to the crust or sprinkle it over the whipped cream before serving. For a sweeter topping, increase the powdered sugar slightly in the whipped cream.
Storage/Reheating
Store leftover Key Lime Pie Bars in an airtight container in the refrigerator for 4 to 5 days.
These bars are best served chilled and do not need reheating. For cleaner slices, keep them cold until just before serving. Add whipped cream shortly before serving for the freshest texture.
FAQs
Can I use bottled lime juice?
Fresh lime juice is best because it gives the bars a brighter, fresher flavor. Bottled lime juice can work in a pinch, but the taste may be less vibrant.
Do I have to use key limes?
No. Regular fresh limes work well and still create a delicious citrus flavor.
Can I make these bars ahead of time?
Yes. These bars are perfect for making ahead because they need at least 4 hours to chill. You can chill them for up to 48 hours before serving.
Why do the bars need to chill?
Chilling helps the filling fully set, making the bars easier to slice and giving them the best creamy texture.
Can I leave out the macadamia nuts?
Yes. You can make the crust with only graham cracker crumbs, butter, and sugar.
How do I know when the bars are done baking?
They should look just set in the center with a tiny bit of browning around the edges. A knife or toothpick may still have a little thick filling on it.
Can I freeze Key Lime Pie Bars?
Yes. Freeze them without whipped cream in an airtight container for up to 2 months. Thaw in the refrigerator before serving.
Can I use a different pan size?
A 9×9-inch pan works best. An 8×8-inch pan may make the bars thicker and require a little extra baking time.
Can I make the whipped cream ahead?
You can make it a few hours ahead and keep it chilled, but it is best freshly whipped before serving.
How do I get clean slices?
Chill the bars well, use a sharp knife, and wipe the knife clean between each cut.
Conclusion
Key Lime Pie Bars are a creamy, tangy, and refreshing dessert with a buttery graham cracker macadamia crust and a smooth lime filling. They are easy to prepare, perfect for making ahead, and finished beautifully with whipped cream and fresh lime zest.
Key Lime Pie Bars
These Key Lime Pie Bars feature a buttery graham cracker and macadamia nut crust topped with a creamy, tangy lime filling. Finished with fresh whipped cream, they are a refreshing dessert perfect for any occasion.
- Prep Time: 20 minutes
- Cook Time: 32 minutes
- Total Time: 52 minutes
- Yield: 9 servings
- Category: Dessert
- Method: Bake
- Cuisine: American
- Diet: Vegetarian
Ingredients
- 1 cup graham cracker crumbs (92 grams)
- 1/3 cup macadamia nuts (50 grams), finely chopped
- 6 tbsp salted butter, melted (85 grams)
- 1 tbsp granulated sugar (13 grams)
- 4 ounces cream cheese, softened at room temperature (113 grams)
- 4 large egg yolks, at room temperature
- 1 (14 ounce) can sweetened condensed milk
- 2 tbsp lime zest
- 1/2 cup + 2 tbsp fresh lime juice (142 grams)
- 1 tsp vanilla extract
- 1/2 cup cold heavy cream (120 grams)
- 1 tbsp powdered sugar (8 grams)
- 1 tbsp vanilla extract
- Extra lime zest and/or lime slices for garnish
Instructions
- Preheat oven to 350°F. Spray a 9×9-inch baking pan with nonstick spray or line with parchment paper.
- Pulse or finely chop the macadamia nuts. Mix graham cracker crumbs, macadamia nuts, melted butter, and granulated sugar in a bowl. Press evenly into the prepared pan and bake for 9 minutes.
- Beat the cream cheese until smooth and creamy. Add the egg yolks and mix until combined. Add the sweetened condensed milk, lime zest, lime juice, and 1 teaspoon vanilla extract. Mix until just combined.
- Pour the filling over the par-baked crust. Bake for 22–24 minutes, until just set with only slight browning at the edges.
- Cool completely at room temperature, then cover and refrigerate for at least 4 hours before serving.
- To make the whipped cream, beat the cold heavy cream, powdered sugar, and 1 tablespoon vanilla extract until stiff peaks form.
- Slice the chilled bars and top each serving with whipped cream and extra lime zest or lime slices. Serve and enjoy.
Notes
- Chill the bars for at least 4 hours for the best texture and clean slices.
- Store leftovers in an airtight container in the refrigerator for 4–5 days.
- Use freshly squeezed lime juice for the brightest flavor.
- Do not overmix the whipped cream or it may become grainy.
Nutrition
- Serving Size: 1 bar
- Calories: 410 kcal
- Sugar: 32 g
- Sodium: 220 mg
- Fat: 24 g
- Saturated Fat: 13 g
- Unsaturated Fat: 9 g
- Trans Fat: 0 g
- Carbohydrates: 43 g
- Fiber: 1 g
- Protein: 7 g
- Cholesterol: 145 mg
