Tortilla Soup

2 tbsp chicken base
4 cups diced canned tomatoes
1/4 lb butter
1 cup canned diced green chilies
3 cups diced onions
10 cups water
5 cups dried refried beans (from the cannery)
2 cups crushed heavy corn tortilla chips
1 tbsp ground cumin
1 tsp garlic powder
2/3 cup diced green onion
2/3 cup fresh cilantro
tortilla chips
sour cream

In a large soup pot, add chicken base, tomatoes, butter, green chilies, and onions. Cook until onions are translucent. Add water, dried beans, chips, and seasonings. Heat until thickened and beans are soft. Add green onions and cilantro about 5 minutes before serving. Garnish with crisp tortilla chips and sour cream. Yields 1 gallon, or 8-10 servings.