Iced Cinnamon Star Cookies

For the cookies:2 1/2 cups almond flour1 1/4 cups powdered sugar2 teaspoons ground cinnamon1/4 teaspoon salt2 large egg whites1 teaspoon vanilla extract For the icing:1 cup powdered sugar3 tablespoons milk, more if needed1/2 teaspoon vanilla extract1. In a large bowl, whisk together almond flour, powdered sugar, cinnamon, and...