If you love the bright, tangy flavor of key lime pie, these Key Lime Pie Bars are about to become your new favorite dessert. They take everything you adore about the classic pie—the creamy, dreamy filling, the buttery graham cracker crust, and that refreshing citrus punch—and turn it into an easy-to-make bar that’s perfect for sharing.
All about Key Lime Pie Bars
These bars are especially wonderful during the warmer months. There’s just something about that smooth, cool lime filling that feels like sunshine in every bite. The balance of sweet and tart is what makes them truly irresistible. The filling is rich, silky, and full of fresh citrus flavor, while the graham cracker crust adds that perfect buttery crunch underneath.
If you have the time, juicing your own key limes really takes the flavor to the next level. Fresh juice gives these bars a vibrant, authentic taste that’s hard to beat. That said, don’t let that stop you—store-bought key lime juice works just fine in a pinch. You can even add a tiny splash of lime extract if you want to boost that citrusy punch a little more.
One of the best parts about this recipe is how simple it is. You’ll start by pressing your graham cracker crust into the pan and baking it briefly to set. Then comes the star of the show—the creamy key lime filling—which gets poured over the crust and baked until just set. After cooling, the bars are topped with a light, fluffy homemade whipped cream that adds the perfect finishing touch.
For a little extra flair (and flavor!), sprinkle some fresh lime zest over the top before serving. It not only makes the bars look beautiful, but it enhances that bright citrus taste in every bite.
Key Lime Pie Bars (The Perfect Summer Treat!)
Creamy, dreamy key lime pie bars with a buttery graham cracker crust and fluffy whipped topping—bright, tangy, and irresistibly refreshing in every bite.
Ingredients
Crust:
- 2 1/2 sleeves graham crackers crushed
- 1 stick salted butter
- sprinkle of sugar
Lime Pie:
- 3 cans sweetened condensed milk
- 1 cup key lime juice
- 2 tsp vanilla extract
- 1 cup sour cream
- 2 egg yolks
- 1 tbsp lime zest
Topping:
- 1 1/2 cups heavy cream
- 1/2 cup powdered sugar
- 1 tbsp lime zest
Instructions
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Preheat oven to 350 degrees F. In a bowl combine crushed graham crackers, melted butter, and sugar. Mix until well combined. Spread and press down evenly in a 9 x 13 pan. Bake at 350 degrees for 8 – 10 minutes.
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While that's baking, in a bowl combine sweetened condensed milk, lime juice, vanilla extract, sour cream, egg yolks, and lime zest. Mix until well combined. Pour over hot crust. Bake at 325 degrees for 18-20 minutes. Let cool.
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While it's cooling, make the topping by adding heavy cream in a large mixing bowl. Mix until stiff peaks form. Add in powdered sugar and mix. Spread over cooled bars and top with lime zest!
Whether you’re making these for a summer gathering, a family dessert, or just because you’re craving something sweet and refreshing, these Key Lime Pie Bars are guaranteed to impress. They’re easy, delicious, and truly hard to resist.
