Mason Jar's Tortilla Soup

Source: CopyKat Recipes

1 each, cut into chunks:
small green bell pepper
medium-size yellow onion
1 lb. celery cut into 1 inch pieces
1/2 lb. carrots, cut into 1 inch pieces
1/3 cup cilantro leaves
1 tbsp. minced garlic
2 tsp. each: chili powder
2 tsp. cumin
1 tsp. cracked black pepper
2 sticks plus 2 tbsp. butter,
divided 1/3 cup olive oil
10 ounces corn tortillas
3 quarts water
4 ounces chicken-seasoned stock base
1/3 cup flour
1 pounds tomatoes, peeled and coarsely chopped
2 pounds skinless, boneless chicken breasts, grilled and diced into 1 inch cubes
Fried corn tortilla strips (1/8-by-1-inch) and grated Cheddar cheese for garnish

Place bell pepper, onion, celery, carrots and cilantro in food processor and finely chop; set aside in a large bowl. In a small bowl, combine garlic, chili powder, cumin and black pepper and stir into chopped vegetables. Melt 1 stick plus 2 tablespoons butter and olive oil in large pan over medium heat. Add vegetable mixture and sauté, stirring often, until vegetables are transparent and lightly browned. Finely chop the 10 ounces of tortillas in food processor and add to vegetable mixture; sauté over medium heat until soft. Transfer mixture to a large pot over medium heat. Add water and chicken base, mixing until chicken base is dissolved. In a large skillet over medium-high heat, melt remaining 1 stick butter and whisk in flour. Cook 2 to 3 minutes, while whisking, to make a roux. Add roux to soup; stir and let simmer 20 minutes. Stir in chopped tomatoes, then diced chicken; cook until heated through. Ladle soup into bowls and sprinkle with tortilla strips and grated cheese.