2 2/3 c. salad oil of choice
1 1/3 c. cider vinegar
1 1/3 c. water
1 1/2 tsp. onion (dried), minced
1/3 tsp. garlic (dried), minced
1 1/3 tsp. salt
1 tbsp. oregano (ground)
1/4 tsp. black pepper
3 lb. mushrooms (fresh)

Combine oil, vinegar, water, onion, garlic salt, oregano and black pepper. Bring to boil; lower heat and simmer 5 minutes. Place clean fresh mushrooms in large stainless steel container or gallon jar. Pour hot mixture over; cover tightly. Let stand 2 days; drain. Reserve marinade.