Chicken Chimichangas with Sour Cream Sauce

Name: Chicken Chimichangas with Sour Cream Sauce
Prep time: 25 min
Cook time: 40 min
Total time: 1 h 5 min
Cuisine: Mexican
Ingredients: 2 large skinless, boneless chicken breast halves; 3 cups water; 1 tablespoon chili powder; ½ teaspoon salt; ½ teaspoon ground cumin; ¼ teaspoon ground black pepper; ¼ teaspoon garlic powder; ¼ teaspoon onion powder; ¼ teaspoon cayenne pepper; 1 (7 oz) can chopped green chilies, divided; ½ cup diced onion; 3 large garlic cloves, minced; 2 tablespoons butter; 2 tablespoons all-purpose flour; 1 cup water; 1 cube chicken bouillon; ½ cup sour cream; Salt and pepper to taste; 8 (8 inches) flour tortillas; 8 ounces shredded Monterey-Jack cheese