These Key Lime Pie Bars are a refreshing treat with a zesty lime flavor and a crunchy graham cracker crust. Perfect for sunny days or when you need a lift!
And let’s be honest, who can resist that creamy filling? I love making these for parties – they’re always a hit, and they disappear faster than I can say “lime pie”! 🍋
Key Ingredients & Substitutions
Graham Crackers: These are the base of the crust, giving a sweet and crunchy texture. If you can’t find graham crackers, you can use crushed digestive biscuits or even vanilla wafers for a different twist.
Sweetened Condensed Milk: This adds sweetness and a creamy texture. If you need a dairy-free option, look for sweetened condensed coconut milk, which works just as well.
Key Lime Juice: Freshly squeezed key lime juice is ideal, but bottled juice works too. If key limes are hard to find, regular limes can substitute, though the flavor will be a bit different.
Sour Cream: It gives the filling a nice tanginess. Greek yogurt can be a good replacement, which also adds creaminess while being a bit healthier!
How Do I Make Sure My Filling is Perfectly Set?
Getting the filling just right can be tricky! To ensure it sets perfectly, follow these tips:
- Mix the filling ingredients until fully combined for a smooth texture.
- When you bake it, keep an eye on the edges. They should be set while the center remains slightly jiggly. It will firm up as it cools!
- Cooling to room temperature before refrigeration is important. It allows the filling to finish cooking gently without getting too firm.
How to Make Key Lime Pie Bars
Ingredients You’ll Need:
For The Crust:
- 1 cup graham cracker crumbs
- 1/4 cup granulated sugar
- 1/2 cup unsalted butter, melted
For The Filling:
- 1 (14-ounce) can sweetened condensed milk
- 1/2 cup sour cream
- 1/2 cup key lime juice (freshly squeezed or bottled)
- Zest of 2 limes
- 1 tsp vanilla extract
For The Topping:
- Whipped cream (for serving)
- Lime zest (for garnish)
How Much Time Will You Need?
This delicious recipe takes about 15 minutes to prepare and another 30-35 minutes in the oven. Don’t forget to set aside at least 2 hours for refrigeration afterward to let those bars fully set. Perfect for a refreshing treat at any time!
Step-by-Step Instructions:
1. Prepare the Crust:
First things first! Preheat your oven to 350°F (175°C). Line an 8×8 inch baking dish with parchment paper, making sure to leave some overhang—this will help you lift the bars out later. In a mixing bowl, combine the graham cracker crumbs, granulated sugar, and melted butter. Mix well until all the crumbs are evenly moistened.
2. Bake the Crust:
Now, press that crumb mixture firmly into the bottom of your prepared baking dish to make a nice, even layer. Bake it in the oven for about 10 minutes until it turns lightly golden. Once done, take it out and let it cool for a bit.
3. Make the Filling:
While the crust is cooling, let’s whip up the filling! In a clean bowl, whisk together the sweetened condensed milk, sour cream, key lime juice, lime zest, and vanilla extract until everything is well mixed and smooth.
4. Combine and Bake:
Pour that delicious filling over your cooled crust, spreading it out evenly. Pop it back in the oven and bake for another 15-20 minutes. The filling should be set but still have a little jiggle in the center—that’s just perfect!
5. Cool and Chill:
After baking, remove the dish from the oven and let it cool to room temperature. Once it’s cooled down, cover it and refrigerate for at least 2 hours to let those flavors meld and the bars fully set.
6. Cut and Serve:
Once chilled, carefully lift the bars out of the dish using the parchment paper. Place them on a cutting board and slice into squares. Serve your refreshing key lime pie bars topped with whipped cream and a sprinkle of lime zest. Enjoy every bite!
Can I Use Regular Lime Juice Instead of Key Lime Juice?
Yes, you can use regular lime juice, but the flavor will be slightly different. Key limes are smaller and more tart, giving a unique taste. If you use regular limes, you might want to adjust the sweetness slightly by adding a bit more sugar or sour cream to balance the tartness.
How Should I Store Leftover Key Lime Pie Bars?
Store leftover bars in an airtight container in the refrigerator for up to a week. Make sure to place a piece of parchment or wax paper between bars if stacking to prevent sticking. They can also be frozen for up to 3 months; just wrap them tightly in plastic wrap and then foil.
Can I Substitute the Sour Cream?
Absolutely! You can substitute sour cream with Greek yogurt for a healthier option. If you’re looking for a dairy-free alternative, try coconut cream or a non-dairy yogurt. Just ensure the consistency is similar for the best results.
How Do I Know When the Filling is Set?
The filling should be set when it is still slightly jiggly in the center after baking. It will firm up as it cools and chills in the refrigerator. If you overbake it, the filling may crack, so keep an eye on it during the last few minutes of baking!
