Slow roast duck with stout and brown sugar

Ingrediants :
1.5 litres stout beer
3 cups brown sugar
peel of 1 orange
1 bunch of thyme
1/3 cup white wine vinegar
1 stick cinnamon
1 duck

Method:
1. Place Stout, brown sugar, orange peel, thyme, vinegar and cinnamon in a pan  and boil and cook for 20 mins
2. let it cook and marinade duck overnight in it
3. Preheat oven to 180 degrees. Cook for 40 mins, check, then cook for another 40 mins

4. cool and rest