Preheat oven to 400 degrees F.
Combine 1/2 cup of the onions, celery, bell peppers
, 1 teaspoon of the salt, and 1/4 teaspoon of the cayenne in a mixing bowl. Remove any excess fat around the opening of the cavity of the goose. Prick other fatty areas with a fork at intervals. Do not prick the breast. Stuff cavity of goose with vegetable mixture. Season the outside of the goose with the remaining 1 teaspoon salt, 1/4 teaspoon cayenne, and the black pepper. Place the goose in a large roasting pan and roast
for about 1 hour and 45 minutes, or until the drumsticks and thighs are easy to remove.
Combine the remaining 1/2 cup onion, carrots, bay leaves
, and port wine in a medium-sized sauce pan over medium heat and bring to a boil. Cook over medium heat until the mixture thickens and reduces to about 1/2 cup, about 30 minutes. Strain through a fine mesh strainer
and let cool.
Using a pastry brush
, glaze the goose with the port wine reduction
, and return to the oven for 5 minutes to allow the glaze
and set. Remove from the oven and let rest for 20 minutes before carving. Serve with the Port Gravy, and Goose Fat-Roasted Potatoes.