With their tangy, refreshing flavor, Key Lime Pie Bars are a must-try treat for any dessert lover looking to brighten their day with a tropical touch. With just the right balance of sweet and sour, these bars capture the essence of a traditional key lime pie, conveniently packed into a handheld delight.
Growing up, my family always looked forward to summer weekends at my grandmother’s house near the beach. She had the most incredible lime tree in her backyard that produced the juiciest key limes. My cousins and I would pick them in the morning, and by afternoon, Grandma had transformed them into the most delicious Key Lime Pie, which later inspired these scrumptious bars. Now, every time I make them, it feels like I’m bringing a piece of those cherished days into my kitchen.
Why You’ll Love This Recipe
This recipe is perfect for any occasion, from summer picnics to holiday gatherings. The bite-sized bars mean less mess and more convenience for sharing. They’re easy to make, requiring simple steps and a handful of ingredients. The burst of lime flavor, combined with a buttery, crunchy base, makes them a crowd-pleaser every time.
Ingredients Notes
The unique taste of these bars comes from fresh key limes, which can be found at most grocery stores during the summer. Don’t worry if you can’t find key limes; regular limes will work as a substitute. Make sure to use sweetened condensed milk for the filling—this ingredient is crucial for achieving the right creamy texture. For the crust, graham crackers are preferred, but digestive biscuits are a great option if you can’t find those.
Recipe Steps
Step 1
Preheat your oven to 350°F (175°C). Line a 9×9-inch baking pan with parchment paper, leaving some overhang for easy removal later.
Step 2
In a bowl, combine 1 1/2 cups of crushed graham crackers and 1/4 cup of melted butter. Press the mixture firmly into the prepared pan to form the crust. Bake for 10 minutes and set aside to cool.
Step 3
While the crust cools, whisk together the sweetened condensed milk, 1/2 cup of fresh lime juice, 1 tablespoon of lime zest, and 3 egg yolks until smooth and creamy.
Step 4
Pour the lime mixture over the cooled crust, spreading it evenly. Bake for 15-20 minutes or until the filling is just set. It should wobble slightly in the center.
Step 5
Allow the bars to cool on a wire rack, then refrigerate for at least 2 hours before slicing. Garnish with additional lime zest or Whipped Cream before serving.
Storage Options
Store leftover bars in an airtight container in the refrigerator for up to 5 days. For longer storage, wrap each piece individually in plastic wrap and freeze for up to 3 months. To enjoy, let them thaw overnight in the fridge before serving.
Variations & Substitutions
If you’re catering to dietary needs, try using gluten-free graham crackers or a gluten-free crust mix. To add an exotic twist, mix in a teaspoon of coconut extract into the filling or top with toasted coconut flakes. For a less tart version, use half key lime juice and half lemon juice.
Serving Suggestions
These bars are perfect for a bright end to a meal or a midday snack. Serve them at outdoor gatherings, brunches, or whenever you need a quick dessert fix. For a festive touch, pair them with a fruit salad or serve alongside a tropical cocktail.
Frequently Asked Questions
Can I use bottled lime juice? While fresh lime juice offers the best flavor, bottled lime juice can be used in a pinch. Just ensure it is 100% pure lime juice without added sweeteners or preservatives.
What if I don’t have a 9×9-inch pan? You can use an 8×8-inch pan; the bars will be slightly thicker and may need a few extra minutes in the oven. Always check for doneness by gently shaking the pan—if the center jiggles, give it more time.
How can I prevent the crust from becoming soggy? Pre-baking the crust is crucial to ensure it stays crisp and firm. When pressing the crumbs into the pan, use a flat-bottomed glass to compact the crumbs firmly. Allow it to cool before adding the filling.
Key Lime Pie Bars
Ingredients
Main Ingredients
- 1.5 cups graham cracker crumbs about 12 whole crackers
- 0.5 cups granulated sugar
- 0.5 cups unsalted butter melted
- 2 cans sweetened condensed milk (14 oz each)
- 0.5 cups key lime juice fresh or bottled
- 2 tablespoons lime zest finely grated
- 4 large egg yolks room temperature
Instructions
Preparation Steps
- Preheat your oven to 350°F (175°C). Grease a 9x13 inch baking dish.
- In a medium bowl, mix together graham cracker crumbs and sugar. Stir in melted butter until well blended. Press mixture into the prepared baking dish.
- Bake in preheated oven for 10 minutes. Remove and let cool slightly.
- In a large bowl, whisk together sweetened condensed milk, lime juice, lime zest, and egg yolks until smooth.
- Pour lime mixture over the crust in the baking dish and spread evenly.
- Bake in preheated oven for 15 minutes, or until set. Chill for at least 2 hours before slicing into bars. Serve chilled.
