1.In a saucepan, over medium heat, combine the brown sugar, vinegar, and Worcestershire sauce. Bring to a gentle boil and remove from the heat.
2. Add all dry spices and mix very well, cover, and let sit for 15 minutes.
3. Stir in the ketchup, maple syrup and honey, before returning the sauce to a simmer over low heat. Cook gently, uncovered, for 30 minutes as the sauce thickens. Don't let the sauce boil.
4. Cube your brisket into 1x1 inch sections, before adding them to a foil tray.
5. Pour over the warm sauce mixture and coat each burnt end.
6. Throw in a few extra nobs of butter before adding the burnt ends back into your smoker for about an hour at 225F, so that the sauce can set on the meat.
7. Remove from the heat and serve. Burnt ends make a great sandwich, or even just served on their own.