Location: Santa Modesta
Across from SMCBS will be a church and a donut shop with a large donut on top of the bakery. What you'll need to do is fly through the donut from one side and make it to the other side without having your feet touch the interior of the faux dough ring. Some suggestions have been to ascend up and then dash through, while another could be to simply control your hoverpack to where you brush the top of it with your head and avoiding it with your feet. Whichever suggestion you take, make your way through the ring and land down on the grass or asphalt on the opposite side and wait a few seconds to see if it registers the trophy for you.