Lemon Curd Squares

INGREDIENTS

• 1 cup all-purpose flour
• 1/3 cup granulated sugar
• 1/2 tsp. salt
• 1/8 tsp. ground cinnamon
• 8 Tbs. (1 stick) cold unsalted butter, cut into
• 1/2-inch pieces
• 3/4 cup granulated sugar
• 2 Tbs. all-purpose flour
• Pinch of salt
• 1 tsp. finely grated lemon zest (optional)
• 3 eggs, at room temperature
• 1/2 cup fresh lemon juice
• 3 Tbs. heavy cream
• Confectioners’ sugar for dusting (optional)