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Lemon Crumb Bars – Bright, Buttery, and Bursting with Citrus

Lemon Crumb Bars on a wooden board with lemon slices

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These tangy and sweet lemon crumb bars have a buttery, crumbly crust and a smooth, creamy lemon filling. Perfect for summer or any time you’re craving a citrusy treat!

Ingredients

Scale

For the Crust:

  • 2 ⅓ cups all-purpose flour
  • ½ cup granulated sugar
  • ½ cup light brown sugar, packed
  • ¾ teaspoon salt
  • ¼ teaspoon baking powder
  • 12 tablespoons unsalted butter, melted and cooled

For the Lemon Filling:

  • 1 (14-ounce) can sweetened condensed milk
  • 4 large egg yolks, room temperature
  • 2 tablespoons heavy cream
  • ⅛ teaspoon salt
  • ⅔ cup fresh lemon juice (about 45 lemons)

Instructions

1. Preheat the oven to 350°F (175°C). Line a 9×9-inch baking pan with parchment paper.

2. In a large bowl, mix the flour, granulated sugar, brown sugar, salt, and baking powder.

3. Pour in the melted butter and mix until the texture becomes crumbly.

4. Press ⅔ of the mixture evenly into the prepared pan.

5. Bake for 15 minutes, until lightly golden.

6. In another large bowl, whisk together the sweetened condensed milk, egg yolks, heavy cream, and salt.

7. Gradually whisk in the lemon juice until smooth and well combined.

8. Pour the lemon filling over the hot crust.

9. Sprinkle the remaining crumb mixture evenly over the top.

10. Bake for 15–20 minutes, until the top is golden brown and the filling is set.

11. Let the bars cool completely at room temperature.

12. Refrigerate for at least 4 hours before slicing and serving.

Notes

Storage: Keep leftovers in an airtight container in the refrigerator for up to 5 days.

Freezing: Store in an airtight container and freeze for up to 3 months. Thaw in the refrigerator before serving.

Serving Tip: Dust with powdered sugar before serving for an extra touch of sweetness.