This cranberry lemon bars recipe layers a buttery shortbread crust, a cooked cranberry filling, and a bright lemon custard on top for an easy make-ahead holiday dessert.
Preheat your oven to 350°F (177°C). Line a 9x13-inch baking pan with parchment paper, leaving overhang for easy removal, or grease the pan well.
In a large mixing bowl, whisk together the flour, powdered sugar, and salt. Pour in the melted butter and stir until combined, the mixture will be crumbly.
2 ½ cups all-purpose flour, 1/2 cup powdered sugar, 1/2 teaspoon salt, 1 cup butter
Transfer the dough to the prepared pan, break it up, and press it into an even layer covering the entire bottom. Bake for 24-27 minutes, or until the crust is golden brown. Let it cool while you prepare the fillings.
In a medium saucepan, combine the cranberries, granulated sugar, water, and lemon zest.
Cook the cranberries over medium heat until the berries burst and the mixture thickens, about 7-8 minutes. In another bowl, whisk together the sugar, flour, lemon zest, eggs, and lemon juice until smooth.
1 ½ cups granulated sugar, 1/2 cup all-purpose flour, 2 tablespoons lemon zest, 4 eggs, 2/3 cup lemon juice
Spread the cranberry filling evenly over the baked crust.
Gently pour the lemon filling over the cranberry layer, pouring slowly to help keep the layers separate. A small amount of mixing is normal. Bake for 25-30 minutes, or until the lemon layer is mostly set but still jiggles slightly in the center when you gently shake the pan.
Let the bars cool to room temperature, then refrigerate for at least 3 hours to set. Once chilled, lift the bars out using the parchment paper and slice into 12 squares.
Dust with powdered sugar before serving, if desired.
3 tablespoons powdered sugar
Notes
Store in an airtight container in the refrigerator for up to 4 days. Not recommended for freezing.