Marinated Venison Pot Roast

Ingredients

• 1 (4 lb.) venison roast
• 1 c. wine vinegar
• 1 tsp. whole allspice
• 1 c. water
• 1 tsp. sugar
• 1/2 tsp. salt
• 1 large onion
• 1/4 clove garlic
• 1/2 c. finely chopped onion
• 1/2 c. finely chopped green pepper
• 1 clove garlic, chopped
• 1/2 c. finely chopped celery
• 1 can cream of mushroom soup
• 3/4 soup can water