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Lemon Lavender Squares

The bright lemony dessert is light and rich all at the same time. The crumbly shortbread crust, topped with tart lemon custard and a generous dusting of powdered sugar, makes for the perfect spring dessert.
Course sweets
Cuisine American
Keyword citrus, curd, floral, herb, lavender, lemon, winter citrus
Prep Time 10 minutes
Cook Time 45 minutes
Servings 9 squares

Ingredients

For the shortbread crust:

  • Vegetable oil cooking spray, as needed
  • ½ cup granulated sugar
  • ¼ teaspoon table salt
  • 1 cup all-purpose flour
  • 8 tablespoons unsalted butter, melted

For the lemon custard:

  • 4 eggs
  • 1 cup granulated sugar
  • 2/3 cup freshly squeezed lemon juice, from about 6 lemons
  • ¼ cup all-purpose flour
  • ½ teaspoon baking powder
  • ½ teaspoon table salt
  • Confectionary sugar, as needed, for dusting
  • 1 teaspoon crushed dried lavender
  • Lemon slices, cut into quarters

Instructions

For the shortbread crust:

  • Preheat oven to 350ºF (180ºC). Spray a 9x9-inch square baking pan with vegetable oil cooking spray.
  • Add the sugar, salt and flour to the bowl of a food processor and pulse until combined. Add butter and continue to pulse until large crumbs form.
  • Evenly press into the bottom of the baking pan and bake until the crust is lightly browned, about 25 minutes.

For the lemon custard:

  • Reduce the heat to 325ºF (170ºC). In the bowl of a stand mixer fitted with the whisk attachment, beat the eggs on medium until they become thick but not frothy.
  • Beat in the granulated sugar, lemon juice, flour, baking powder and salt. Pour the mixture over the crust and evenly spread.
  • Bake until the custard has set, about 20 minutes.
  • Remove from the oven and let cool completely. Once cool, sift the powdered sugar and cut into squares. Garnish with the lavender and lemon slices.