01 - Preheat the oven to 350°F.
02 - Remove excess fat from the cavity and set aside for rendering. Prick the skin all over with a skewer to aid fat release.
03 - Generously season the cavity and skin with kosher salt and freshly ground black pepper.
04 - Fill the cavity with quartered apples, onions, orange, and fresh herbs: thyme, marjoram, and rosemary. Tie the legs securely with kitchen twine.
05 - Place chopped carrots, celery, and leek in a large roasting pan. Position a rack on top and place the goose breast-side up on the rack.
06 - Pour 2 cups of water into the pan to prevent burning and facilitate fat rendering.
07 - Roast the goose for 2 hours and 30 minutes, basting every 30 minutes with the rendered fat collected in the pan. Carefully pour off excess fat into a heatproof bowl for later use.
08 - Increase oven temperature to 425°F for the final 15 to 20 minutes to achieve extra crispy skin.
09 - Ensure the internal temperature of the thickest thigh reaches 165°F and juices run clear. The skin should be golden brown.
10 - Tent the goose loosely with foil and allow to rest for 20 minutes before carving. Serve with rendered goose fat on the side.