Place egg whites in a small bowl; let stand at room temperature for 30 minutes. Sift almond flour, 1-1/4 cups confectioners' sugar and cinnamon together twice., Preheat oven to 325°. Beat egg whites on medium speed until soft peaks form. Gradually add sugar, 1 tablespoon at a time, beating on high until stiff peaks form. Fold in almond flour mixture., With a pastry bag, pipe 1-in.-diameter cookies 2 in. apart onto parchment-lined baking sheets. Bake until lightly browned and firm to the touch, 9-12 minutes. Keeping cookies on the parchment, transfer to wire racks; cool completely., For filling, in a small bowl, beat cream cheese and butter until creamy. Beat in vanilla. Gradually beat in confectioners’ sugar until fluffy. Refrigerate until mixture firms to a spreading consistency, about 10 minutes., Spread about 1/4 teaspoon filling onto the bottom of each of half of the cookies; top with remaining cookies. Sprinkle with additional cinnamon. Store in airtight containers in the refrigerator.