This blue-and-green spin on Julia’s New Year’s Eve ball drop cookie is as stunning as all of her others, in large part because of her careful planning of the pattern and color interplay. Julia started by icing the diamond cookies, alternating between blue and white icing, and starting with blue in the center. Then, she airbrushed and stenciled with black coloring, one ring of diamonds at a time, taking care to connect the patterns as she went. All of the green details are either directly piped royal icing or royal icing transfers. To learn more about to make this cookie, jump on over to Julia’s YouTube channel and check out her instructional video.