Lemon Alfajores with Dulce de Leche

Ingredients

• A two-inch round cookie cutter
• Dulce de Leche
• 2 cups all purpose flour (Preferably King Arthur)
• ¼ tsp baking soda
• 1 whole large egg
• 1 large egg yolk
• ½ tsp salt
• + 4 more ingredients
• • ²/₃ cup sugar
  • 1 stick unsalted butter, softened
  • ¼ cup fresh lemon juice (about 2 lemons)
  • Grated lemon zest of 1 large lemon

To make cookie dough: Boil lemon zest and juice in a small saucepan over medium heat until reduced to 1 tablespoon (about 5 minutes). Remove from heat and cool. Beat together butter, sugar and salt with an electric mixer until light and fluffy, about five minutes. Add yolk and egg one at a time, ...

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