Preparation

• Position a rack in the center of the oven and heat the oven to 450°F. Brush the pork all over with the olive oil, and season generously all over with salt and pepper.
• Combine the garlic, fennel seeds, rosemary, and orange zest, and press the mixture all over the pork. Transfer to a small rimmed baking sheet or ovenproof skillet, and roast until an instant-read thermometer inserted in the thickest part of the pork registers 135°F, about 20 minutes. Let rest on a cutting board for 5 minutes before slicing and transferring to a platter. Pour the juice from the cutting board and the baking sheet over the pork and serve.