Duck Breasts

1/2 cup vinegar (white)
1 cup peanut oil
1 tsp. of mustard powder
1 tsp. cayenne pepper
1 tsp. onion powder
1 tsp. Worstershire
1/2 tsp. of hot/spicy sauce
3/4" X 4" Onion slices 

Let the breasts marinate for at least 24 hours.
Wrap breast around onion slice and pin with toothpick.
Then wrap breast with bacon -- do not spare the bacon; use lots! 
Cook slowly for 45 minutes.
Do not use direct heat.
Add smoke sticks if smoke flavor is desired.