Creamy Chicken and Mushroom Chowder

Name: Creamy Chicken and Mushroom Chowder
Ingredients: 1 Tbsp olive oil; 2 Tbsp unsalted butter; 8 oz cremini (baby portobello) mushrooms, sliced; 4 cloves garlic, minced; 1 yellow onion, diced; 2 carrots, peeled and finely diced; 2 stalks celery, diced; 1 tsp kosher salt; 1/2 tsp ground black pepper; 1/2 tsp dried thyme; 1/4 cup all purpose flour; 4 cups chicken stock (reduced sodium); 4-5 medium red potatoes, diced into 1/2 inch cubes; 1 dried bay leaf; 2/3 cup heavy cream (or half and half); 2 cups shredded chicken; additional black pepper, for garnish; minced fresh parsley, for garnish