Creamless Cream of Mushroom Soup

Name: Creamless Cream of Mushroom Soup
Ingredients: 1/2 ounce Dried porcini mushroom; 1 cup Boiling water; 2 tablespoons Olive oil; 4 Large shallots, sliced; 4 ounces Baby portabella mushrooms, chopped; 4 ounces White button mushrooms, chopped; 3 Garlic cloves, peeled and minced; 3 tablespoons Fresh chopped thyme; 1/2 tablespoon Herbs de provence; 1 Bay leaf; 1/2 teaspoon Salt; 1 teaspoon Fresh ground pepper; 2 cups Low sodium chicken broth; 1 cup 2% milk; 3/4 cup Low fat Greek yogurt; 1 1/2 tablespoons Cornstarch; 3 tablespoons Fresh chopped parsley, plus more for garnish