Keto Cream of Mushroom Soup

Mushroom soup is the sleeper hit of the keto world—earthy, deeply satisfying, and naturally low-carb when you skip the flour roux. This version relies on heavy cream and ghee to build body and richness, letting the umami of sautéed mushrooms shine through. The Dijon mustard adds subtle depth without heat, while thyme ties everything together like a warm hug.

The key mistake most home cooks make is rushing the mushrooms. Let them sit undisturbed in the hot ghee for a good 3–4 minutes before stirring; this browning develops flavor compounds that make all the difference. If your soup feels too thin, blend half of it—the natural starches in mushrooms thicken slightly, and you'll get a luxurious consistency without any cornflour or cream cheese tricks.

For a lighter keto version, swap half the heavy cream with full-fat coconut milk (about 7g carbs per serving instead of 7g, but richer body). You can prep this entire soup up to two days ahead; store in the fridge and reheat gently over low heat to preserve the cream's silky texture.