Chicken Peanut Soup with Mashed Yams

Name: Chicken Peanut Soup with Mashed Yams
Ingredients: 2 whole Medium Yams, Cut Into 1 Pieces; ⅓ cups Milk; 3 Tablespoons Butter; 4 cups Chicken Stock; 1 pound Shredded, Cooked Chicken; 2 whole Carrots, Diced; 14-½ ounces, weight Diced Tomatoes, Undrained; 2 stalks Celery, Diced; ½ whole Onion, Diced; 3 whole Green Onions, Sliced; ½ cups Roasted Red Bell Peppers; 4 cloves Garlic, Minced; 1 teaspoon Red Pepper Flakes; Salt And Pepper, to taste; ⅓ cups Creamy Peanut Butter; 1 bunch Cilantro, Roughly Chopped