Chicken and Mushroom Rice Soup

Name: Chicken and Mushroom Rice Soup
Ingredients: 4 medium vine ripened tomatoes; 2 quarts water skinning tomatoes; To taste salt; 1 large onion; 1/4 cup Spanish ground paprika; 1 teaspoon granulated garlic powder; 2 pods ancho dried chili pod seeds removed; 1 teaspoon dried rosemary; 1 teaspoon ground black pepper; 1 teaspoon ground white pepper; 1 stick butter; 5 chicken thighs bone in skin on; 2 quarts water stock; 1/2 teaspoon chopped chives; 1/2 teaspoon ground sage; 1/3 cup water thicken; 2 tablespoons heaping cornstarch thicken; 2 cups short grain rice; 15 ounce can of cream of mushroom soup; 6 cups water; To taste salt 1 stick butter divided