Zesty Lemon Bars

  • Yield:12

Ingredients

  • Shortbread Crust:
  • 1 cup (2 sticks) unsalted butter, cold
  • 2 cups all-purpose flour
  • 1/4 cup sugar
  • 1/4 cup packed light brown sugar
  • 1/2 teaspoon sea salt
  • 1 lemon, zested
  • Lemon filling:
  • 4 extra-large eggs
  • 1 1/2 cups sugar
  • 3/4 cup fresh lemon juice (about 3 large lemons)
  • 1/3 cup all-purpose flour
  • 1 lemon, zested

Directions

  1. 1.

    Preheat the oven to 350°F.

  2. 2.

    Make the crust: Cut the butter into 1/2-inch pieces. In a food processor or using a handheld pastry cutter, process all the shortbread ingredients until the mixture begins to form small pea-shaped lumps.

  3. 3.

    Sprinkle the dough into a rectangualr 13 x 9 x 2-inch baking pan. (The bars can also be made in a square 8- or 9-inch baking pan&em;they will be thicker and take about 15 more minutes to bake.) Using your fingers or a metal spatula, press the dough firmly and evenly onto the bottom and 1/2 inch up the sides of the pan to form a 1/2-inch layer of shortbread. Prick all over with a fork.

  4. 4.

    Bake the shortbread in the middle of the oven until golden, about 25 minutes. Remove it to a cooling rack. (Cover with foil to keep warm if necessary.)

  5. 5.

    While the curst is baking, make the filling: In a large metal bowl, whisk the eggs and sugar together until well combined and a light yellow color. Stir in the lemon juice, flour, and zest.

  6. 6.

    When the shortbread crust is ready and still hot, pour the lemon mixture evenly over it. Lower the oven temperature to 300°F. When it has reached the lower temperature, bake the bars in the middle of the oven until set, about 30 minutes. The top should be light brown and look a little bubbly and crusty.

  7. 7.

    Let the bars cool completely in the pan on a cooling rack, then cut them into 3-inch squares with a nonserrated knife.