In a large pot over medium heat add the butter to melt. After the butter has melted, add the garlic, onion, and a pinch of salt to the pot. Sauté until softened.
Add all the mushrooms to the pot with a splash of water. Saute for 5 minutes, and use water to deglaze the pot if needed. Add the dried thyme.
Pour broth and water into the pot and simmer on medium-low covered for 10 minutes.
Add pepper and ½ teaspoon of salt and taste. Add more salt as needed.
Serve with warm crusty sourdough bread and enjoy!
Notes
Keeps well for 5 days in the fridge in an airtight container.