Mushroom and Brie Soup

Name: Mushroom and Brie Soup
Cook time: 45 min
Total time: 45 min
Cuisine: American
Ingredients: 1 1/2 pounds cremini mushrooms (or any variety you like); 2 Tbsp unsalted butter; 2-3 large shallots (peeled and finely diced); 3 cloves garlic (finely chopped); 2 Tbsp flour; 1/2 cup Marsala wine; 2 cups chicken stock (or veggie stock); 2 Tbsp fresh thyme leaves; salt and freshly cracked black pepper to taste; 1/2 cup heavy cream (or half and half); 6 ounces Brie cheese (rind removed, cut in chunks)