1/2cupmild flavored plant milksuch as oat or unsweetened almond
Instructions
Into a large skillet over medium heat, add butter. When butter is melted, add onion, mushrooms, thyme, celery seed, salt, and pepper. Cook, stirring frequently, until softened, about 6 minutes.
Add garlic and continue cooking another 1 minute.
Add flour and stir to incorporate. Cook 2 minutes more, then quickly whisk in broth and milk.
Bring to a boil for 1 minute. Remove from heat and allow too cool. The soup is now ready for use in any recipe calling for condensed cream of mushroom soup.