Marinated Mushrooms - cooking recipe

Ingredients

1/3 c. red wine vinegar
1/3 c. salad oil
1 onion, sliced and separated in rings
1 tsp. salt
2 tsp. dried parsley flakes
1 tsp. mustard
1 Tbsp. brown sugar
2 (6 oz.) cans mushroom crowns, drained

Preparation

Mix all ingredients except mushrooms.
Bring to a boil.
Add mushrooms.
Simmer 5 to 6 minutes.
Stir occasionally.
Chill in covered container overnight.