Key Lime Shortbread Bars

• Zest of 2 key limes
• 1/4 cup (60 ml) heavy cream (optional, for extra creaminess)
• 2 tablespoons all-purpose flour (to help set the filling)

Optional Topping:

• Powdered sugar for dusting

Step-by-Step Method

Step 1: Prepare the Oven and Pan

1. Preheat your oven to 350°F (175°C).
2. Line a 9×13-inch baking pan with parchment paper, leaving an overhang for easy removal.

Step 2: Make the Shortbread Crust

1. In a large mixing bowl, cream the butter and sugar together until light and fluffy.
2. Gradually add the flour and salt, mixing just until incorporated. The dough should be slightly crumbly but hold together when pressed.
3. Press the dough evenly into the prepared baking pan. Use the bottom of a measuring cup to create a smooth, even layer.
4. Bake the crust for 18-20 minutes or until it’s lightly golden at the edges. Remove from the oven and let it cool slightly while preparing the filling.

Step 3: Prepare the Key Lime Filling

1. In a medium bowl, whisk together eggs and sugar until fully combined.
2. Stir in the key lime juice, lime zest, heavy cream (if using), and flour. Mix until smooth and uniform.
3. Pour the filling over the slightly cooled shortbread crust, spreading evenly with a spatula.

Step 4: Bake the Bars

1. Return the pan to the oven and bake for 20-25 minutes, or until the filling is set but still slightly jiggly in the center. The edges may lightly brown.
2. Remove from the oven and allow to cool at room temperature for at least 1 hour. For best results, refrigerate for 2-3 hours before cutting to let the filling fully set.

Step 5: Cut and Serve

1. Use the parchment paper overhang to lift the bars from the pan.
2. Cut into squares or rectangles with a sharp knife. For clean edges, wipe the knife with a warm, damp cloth between cuts.
3. Dust with powdered sugar if desired. Serve chilled or at room temperature.

Tips for Perfect Key Lime Bars

• Fresh Key Limes: Using fresh key lime juice and zest makes a big difference in flavor.
• Don’t Overbake: The filling will firm up as it cools, so avoid overbaking to keep a creamy texture.
• Make Ahead: These bars taste even better when made a day ahead, allowing the flavors to meld.

These Key Lime Shortbread Bars are perfect for summer gatherings, potlucks, or a sweet treat after dinner. Their crisp shortbread base paired with tangy, creamy lime filling is irresistible, and the recipe is simple enough for both beginner and experienced bakers.

If you want, I can also make a version with a crunchy graham cracker crust for a slightly different texture and extra citrus punch—it’s a summer favorite!

Do you want me to do that?