Dulce De Leche Cookie Bars Ingredients 2 cups plus 1 tablespoon all-purpose flour 1 1/2 sticks (12 tablespoons) cold unsalted butter, diced 1/3 cup confectioners' sugar 1 tablespoon pure vanilla extract 1/2 teaspoon kosher salt 1 cup dulce de leche 1/4 cup heavy cream 2 large egg yolks 3/4 cup semisweet chocolate chips 3/4 cup