Recipe: Lemon Curd Sandwich Cookies

Name: Recipe: Lemon Curd Sandwich Cookies
Ingredients: 2 sticks (8 ounces) unsalted butter, at room temperature; 4 ounces cream cheese, at room temperature; 1 cup granulated sugar; 1 large egg yolk; 1 teaspoon vanilla extract; 1 teaspoon freshly grated lemon zest; 2 1/2 cups all-purpose flour; 1/2 teaspoon fine salt; 1 cup freshly squeezed lemon juice (from 3 to 4 lemons); Finely grated zest from 1 lemon; 1 large egg; 2 large egg yolks; 1/4 cup granulated sugar; 4 tablespoons unsalted butter, cubed and at room temperature; Pinch of fine salt