Meyer Lemon Bars

For the crust:

2 1/2 cups all-purpose flour

1 cup powdered sugar

1 teaspoon salt

16 tablespoons (2 sticks) unsalted butter, cut into 1-inch pieces

For the lemon filling:

14 large egg yolks, plus 4 large eggs

2 cups plus 4 tablespoons granulated sugar

1 1/3 cups lemon juice from 8-9 Meyer lemons, plus 1/2 cup finely grated zest

Pinch of salt

8 tablespoons unsalted butter, cut into 4 pieces

6 tablespoons heavy cream

Powdered sugar, optional

Make the crust:

Spray a 9x13" baking pan with cooking spray. Create a sling with parchment paper or foil and fit in pan. Spray the sheets with nonstick cooking spray and set aside.

Put the flour, powdered sugar, and salt in a food processor and pulse a few times. Add the butter and pulse 8 to 10 times, then process until the mixture is pale yellow and resembles coarse meal, about three 1-second pulses. Dump the mixture into the prepared pan and press firmly with your fingers into an even layer in the pan. Refrigerate for 30 minutes.

Adjust oven rack to the middle position and heat the oven to 350°F. Bake the crust until golden brown, about 20 minutes.

Meanwhile, make the filling:

Fit a strainer into a nonreactive mixing bowl or 4 cup measuring cup and set aside.

In a medium non-reactive bowl, whisk together the yolks and whole eggs until combined. Rub the lemon zest into the sugar, which brings out more lemon flavor, then add to the eggs and whisk until just combined. Add the lemon juice and salt; whisk until combined. Transfer the mixture to a medium non-reactive saucepan, add the butter pieces, and cook over medium-low heat, stirring constantly with a wooden spoon or heatproof spatula until the curd thickens slightly and registers 170°F on an instant-read thermometer, about 5 minutes. Immediately pour the curd through the strainer into the measuring cup or bowl. Stir in the heavy cream; pour the curd into the warm crust immediately.

Bake until the filling is shiny and opaque and the center 3 inches jiggle slightly when shaken, 10 to 15 minutes. Cool to room temperature on a wire rack. Remove the bars from the pan using the sling and transfer to a cutting board. Cut into squares and dust with powdered sugar, if desired.