These Key Lime Pie Bars are a tasty treat with a creamy lime filling on a buttery crust! They bring bright, zesty flavors that are perfect for sunny days.
When I make them, I can’t resist a sprinkle of whipped cream on top. They disappear fast, so be ready to share (or keep them all for yourself)! 😉
Key Ingredients & Substitutions
Graham Cracker Crumbs: These are essential for the crust’s flavor and texture. If you don’t have graham crackers, you can replace them with crushed digestive biscuits or vanilla wafers for a different twist.
Sweetened Condensed Milk: This gives the filling its creamy sweetness. If you’re looking for a dairy-free option, try using coconut cream mixed with a bit of sugar instead!
Key Lime Juice: Fresh key lime juice is ideal for a tart flavor. If unavailable, regular lime juice works well, but it might be slightly less tangy. You could also use bottled key lime juice in a pinch!
Whipped Cream: I love topping these bars with homemade whipped cream, but store-bought is totally fine if you’re short on time. You can even try coconut whipped cream for a fun variation!
Why Is It Important to Let the Bars Cool Completely?
Cooling is key for these key lime bars! After baking, they need time to set properly. Here’s why:
- Letting them cool to room temperature allows the filling to stabilize. If you cut them too soon, they might be too soft and messy!
- Chilling in the fridge for at least 2 hours helps them firm up, making them easier to cut into neat squares.
So remember, patience is essential! Once cooled, you’ll have beautiful, firm bars ready to impress everyone.
How to Make Key Lime Pie Bars?
Ingredients You’ll Need:
For the Crust:
- 1 ½ cups graham cracker crumbs
- ⅓ cup granulated sugar
- ½ cup unsalted butter, melted
For the Filling:
- 1 (14 oz) can sweetened condensed milk
- ½ cup sour cream
- ¾ cup fresh key lime juice (or regular lime juice)
- Zest of 2 limes
- 3 large egg yolks
For the Topping:
- Whipped cream (for serving)
- Lime zest (for garnish)
How Much Time Will You Need?
This delicious recipe takes about 20 minutes to prepare and 2 hours to chill. So you’re looking at a total of about 2 hours and 20 minutes before you can enjoy these tasty Key Lime Pie Bars. Most of that time is just letting them chill in the fridge!
Step-by-Step Instructions:
1. Prepare the Oven and Baking Pan:
To begin, preheat your oven to 350°F (175°C). While that’s heating up, grab an 8-inch square baking pan and line it with parchment paper. Make sure to leave some overhang on the sides. This will help you lift out the bars easily later on.
2. Make the Crust:
In a medium bowl, mix together the graham cracker crumbs and granulated sugar. Next, pour in the melted unsalted butter and stir until everything is well coated and combined. Now, press this mixture firmly into the bottom of your prepared baking pan to create an even layer. Pop it in the oven for 8-10 minutes until it turns golden brown. Once done, take it out and let it cool a bit.
3. Prepare the Filling:
While the crust is cooling, let’s make the filling! In a large mixing bowl, whisk together the sweetened condensed milk, sour cream, fresh lime juice, lime zest, and egg yolks. Keep whisking until the mixture is smooth and everything is well blended.
4. Bake It Together:
Now, pour this filling over your slightly cooled crust, spreading it out evenly. Bake it in the oven for another 15-18 minutes. You’ll want it to be set but still a bit jiggly in the center. After that, take it out of the oven and let it cool at room temperature.
5. Chill Out:
Once cooled, cover the pan and refrigerate your Key Lime Pie Bars for at least 2 hours. This chilling time helps them firm up nicely!
6. Serve and Enjoy:
When you’re ready to enjoy, lift the bars out of the pan using the parchment paper overhang. Cut them into nice squares. Top each square with a generous dollop of whipped cream and a sprinkle of lime zest for that bright flavor. Enjoy your homemade Key Lime Pie Bars!
## FAQ for Key Lime Pie Bars
Can I Substitute Regular Limes for Key Limes?
Absolutely! Regular limes will work just fine. Keep in mind that the flavor may be a bit different since key limes are smaller and have a unique tartness. Use the same amount of juice and zest as stated in the recipe for the best results.
How Do I Store Leftover Key Lime Pie Bars?
Store any leftovers in an airtight container in the refrigerator for up to 4 days. Just make sure to place a piece of parchment paper between the bars and the lid to keep the whipped cream topping from sticking.
Can I Make This Recipe Gluten-Free?
How Can I Make These Bars Ahead of Time?
These bars are perfect for making ahead! Prepare the entire recipe and refrigerate them for up to 3 days before serving. Just add the whipped cream topping just before serving to keep it fresh and fluffy!
