Marinated Arm Roast

Ingredients

• 3 lb. arm or chuck roast
• 1/2 c. onion, chopped
• 1/4 c. lemon juice
• 1/4 c. salad oil, olive
• 1/2 tsp. salt
• 1/2 tsp. celery salt
• 1/2 tsp. pepper
• 1/2 tsp. thyme
• 1/2 tsp. oregano
• 1/2 tsp. rosemary
• 1 clove garlic, crushed
• 1/4 c. soy sauce
• 1/4 c. vinegar