Bring the red wine and beef stock to boil and let it simmer and reduce.
When it has reduced a bit add the bay leaf, cinnamon, black pepper and chili so the flavors have some time to mature. Taste and see if it tastes good.
Now add the chocolate and stir so it doesn't stick. Taste again and see if you need to add the salt and maple syrup.
Add water if you want a thinner consistency/add cornflour if you want a thicker consistency.
Strain the sauce and pour it into a container.
Serve with roast beef, steak or lamb.
Tips & Trix
If you want a sauce that fits more to savory dishes, then before step one add 50/50 stock + redwine and reduce the liquid before continuing with the other steps. Then add the sugar, syrup and heavy cream slowly and taste so it doesn't get to sweet!