If you plan to make this savory mushroom soup soon, go ahead and shop for, or gather from the kitchen, the following basic ingredients: unsalted butter, celery, a red onion, baby bella mushrooms, all-purpose flour, dried thyme, bay leaves, veggie broth, and salt, pepper, and heavy cream.
We asked Carli about her choice of a few of these ingredients, namely, the heavy cream. “To make this soup really decadent and creamy, I use heavy cream,” she told Mashed. But there’s another option for those who want to enjoy a lighter version of the soup, with Carli noting, “You can substitute whole milk if you want to save some calories.”
Meanwhile, we wondered why the recipe developer chose red onion specifically for this dish. “I love the flavor pairing of red onion with mushrooms,” she shared with us, adding, “It is a bit sweeter.”