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Lemon Squares

Buttery shortbread meets bright lemon curd in these squares, where tart citrus fills a tender crust and finishes with a snowy dusting of confectioners' sugar.

Lemon Squares
Total
58 min
Prep
20 min
Cook
38 min
Serves
9

Nutrition per Serving

Calories
207
Protein
3g
Carbs
31g
Fat
8g
Fiber
1g
Sugar
16g
Sodium
128mg

Ingredients

  • 1 cup white whole-wheat flour or all-purpose flour
  • 1/3 cup confectioners' sugar
  • 3 tbsp cornstarch
  • 1/4 tsp salt
  • 3 tbsp canola oil
  • 2 tbsp butter, softened
  • 1/2 cup granulated sugar
  • 3 tbsp cornstarch
  • 1/4 tsp baking powder
  • 1/8 tsp salt
  • 2 large eggs
  • 2/3 cup water
  • 1/3 cup lemon juice
  • Lemon zest, for garnish
  • Confectioners' sugar, for garnish

Instructions

  1. Preheat oven to 350 degrees F. Line an 8-inch-square baking pan with foil and generously coat it with cooking spray.
  2. To prepare crust: Combine flour, confectioners' sugar, 3 tablespoons cornstarch and 1/4 teaspoon salt in a medium bowl. Add oil and butter; using your fingertips, blend into the flour mixture until evenly combined. The mixture will be a little crumbly. Firmly press the dough into the prepared pan. Bake the crust until just barely beginning to brown around the edges, 15 to 20 minutes.
  3. To prepare filling: Whisk granulated sugar, cornstarch, baking powder and 1/8 teaspoon salt in a medium bowl until well combined. Whisk in eggs. Stir in water and lemon juice. Pour the filling over the crust.
  4. Bake until just set, 18 to 20 minutes. (The center should still be a little jiggly--it will firm up as it cools.)
  5. Let cool to room temperature in the pan on a wire rack, about 1 1/2 hours. Gently lift out of the pan all in one piece using the edges of the foil. Cut into 9 squares. Garnish with lemon zest and dust with confectioners' sugar, if desired, just before serving.