01 -
Preheat oven to 350°F. Line a 9x13-inch baking pan with parchment paper, leaving an overhang on the long sides for easy removal. Lightly spray the bottom with non-stick cooking spray to help the parchment adhere.
02 -
In a bowl, combine 1 cup plus 1 tablespoon all-purpose flour, 1/4 cup granulated sugar, and 1/4 teaspoon salt. Add 1/2 cup cold, cubed unsalted butter and use a pastry cutter or your fingertips to blend until crumbly. Mix in 1 teaspoon vanilla extract. Press the mixture firmly into the prepared pan to form an even layer. Bake for 18-22 minutes or until lightly golden around the edges. Allow to cool slightly.
03 -
In a large bowl, whisk together 1 cup granulated sugar, 3 tablespoons all-purpose flour, and 1/2 teaspoon salt. In a separate bowl, beat 3 large eggs. Add the eggs to the sugar mixture and whisk until smooth. Stir in 1/2 cup freshly squeezed lemon juice and 2 tablespoons finely grated lemon zest. Gently fold in 1/2 cup melted and slightly cooled unsalted butter until fully incorporated.
04 -
In a small saucepan, combine 8 ounces cranberries, 6 tablespoons granulated sugar, and 1/2 cup water. Add 1/2 teaspoon lemon zest if using. Cook over medium heat, stirring occasionally, for 5 to 7 minutes until cranberries burst and the mixture is thick and jam-like. Remove from heat and gently mash some whole cranberries. Set aside to cool slightly.
05 -
Pour the lemon filling over the pre-baked crust, spreading it into an even layer. Drop spoonfuls of cranberry mixture over the lemon filling and use a knife or skewer to gently swirl for a marbled effect. Return the pan to the oven and bake for 30 to 35 minutes, or until the lemon layer is just set in the center.
06 -
Allow the bars to cool completely in the pan on a wire rack. Use the parchment overhang to lift out. Once cool, dust with powdered sugar if desired. Slice into bars and serve.