LEMON-LIME BLUEBERRY SQUARES

Lemon-Lime Blueberry Squares image

Yield Makes about 9 squares

Number Of Ingredients 17

For crust
1/2 cup all-purpose flour
3/4 cup yellow cornmeal
6 tablespoons confectioners sugar
1/2 teaspoon salt
1 stick (1/2 cup) cold unsalted butter, cut into pieces
For filling
3 large eggs
1/2 cup granulated sugar
1 1/2 tablespoons all-purpose flour
1/2 teaspoon finely grated fresh lemon zest
1/2 teaspoon finely grated fresh lime zest
1 tablespoon fresh lemon juice
1 tablespoon fresh lime juice
2 tablespoons whole milk
2 cups blueberries (10 oz)
3 tablespoons apricot jam, heated and strained

Steps:

Make crust:
Preheat oven to 375°F. Line a buttered 8-inch square glass baking dish with 2 (18- by 6-inch) sheets of foil, overlapping them in opposite directions so that there is overhang on all 4 sides.
Pulse together flour, cornmeal, confectioners sugar, salt, and butter in a food processor until mixture resembles coarse meal. Press onto bottom of baking dish and 1 inch up sides. Bake in middle of oven until golden brown, about 20 minutes.
Make filling while crust bakes:
Whisk together eggs, sugar, flour, and zests. Whisk in juices, milk, and a pinch of salt. Toss blueberries with jam in another bowl.
Whisk egg mixture and immediately pour into hot crust, then bake until just set, about 17 minutes. Gently spoon berries evenly over top and bake 2 minutes more. Transfer baking dish to a rack and cool.
Chill, covered, overnight (8 hours). Use foil to lift dessert out of dish, then cut into squares.