Lemon Raspberry Swirl Bars (Printer-Friendly)

Tangy lemon filling meets vibrant raspberry swirl on buttery shortbread for a stunning dessert.

# What You'll Need:

→ Shortbread Crust

01 - 1 cup all-purpose flour
02 - 1/4 cup powdered sugar
03 - 1/4 tsp salt
04 - 1/2 cup unsalted butter, cold and cubed

→ Lemon Filling

05 - 1 cup granulated sugar
06 - 2 large eggs
07 - 1/4 cup all-purpose flour
08 - 1/2 cup freshly squeezed lemon juice
09 - 1 tbsp lemon zest
10 - 1/4 tsp salt

→ Raspberry Swirl

11 - 1/2 cup fresh raspberries
12 - 2 tbsp granulated sugar
13 - 1 tsp lemon juice

→ Optional Garnish

14 - Powdered sugar for dusting

# How to Make It:

01 - Preheat oven to 350°F. Line an 8x8-inch baking pan with parchment paper, allowing overhang for easy removal.
02 - Mix flour, powdered sugar, and salt in a medium bowl. Cut in cold butter using a pastry cutter until mixture resembles coarse crumbs. Press evenly into prepared pan.
03 - Bake crust for 18–20 minutes until lightly golden. Remove from oven while keeping temperature set.
04 - Mash raspberries with sugar and lemon juice in a small saucepan. Warm over medium heat for 3–4 minutes, stirring until raspberries break down and mixture thickens. Strain through fine mesh sieve to remove seeds.
05 - Whisk together granulated sugar and eggs until smooth. Add flour, lemon juice, lemon zest, and salt; whisk until fully combined.
06 - Pour lemon filling over warm crust. Drop teaspoons of raspberry sauce over the lemon layer. Use a toothpick or knife to gently swirl the raspberry sauce into the lemon filling for a marbled effect.
07 - Bake for 20–22 minutes until center is just set and no longer jiggly.
08 - Cool completely in the pan on a wire rack. Refrigerate for at least 2 hours before slicing into bars.
09 - Dust with powdered sugar before serving, if desired.

# Expert Advice:

01 -
  • The buttery crust practically melts on your tongue while still holding its shape
  • That raspberry swirl makes every bar look like an edible painting
  • They actually taste better after a night in the fridge, making them perfect for planning ahead
02 -
  • Chilling time is not optional here because warm lemon filling will squish out when you try to cut it
  • The crust should look slightly underbaked when you pull it out the first time since it cooks more with the filling
  • Sieving the raspberry sauce takes an extra minute but makes such a difference in the smooth final texture
03 -
  • Room temperature eggs whisk into the sugar more smoothly and prevent little white flecks in your finished filling
  • If you only have salted butter, just reduce the salt in the crust by half and you will be fine

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