Crock Pot Swiss Steak Recipe

• 2 Tbsp. flour
• 1/2 tsp salt
• 1/4 tsp freshly-grnd black pepper
• 1 1/2 lb round steak - (to 2 lbs)
• 1 med onion diced
• 2 Tbsp. butter
• 1 can tomato soup - (or possibly equivalent of whole tomatoes, or possibly stewed tomatoes)
• 1/2 c. water
• 1 1/2 tsp vinegar

Directions