Preheat the oven to 180 degrees C. Lightly grease a large 900g loaf tin.
In a saucepan over a medium heat, combine the brown sugar, marmalade, tomato sauce and mustard then stir until well mixed together. Remove from the heat.
Into a large mixing bowl combine the remainder of the ingredients and mix thoroughly until everything is incorporated. Transfer the mixture to the prepared loaf tin and pour over the marmalade mixture.
Bake in the preheated oven for 70 to 80 minutes until the meat is no longer pink. Remove from the oven and serve.
If you can't get hold of rabbit then chicken will do.