Warm up with this hearty Allergen Free Soup Base (Previously Called Gluten Free Mushroom recipe. Made with onion, butter, fresh mushrooms and cornstarch…
This Allergen Free Soup Base (Previously Called Gluten Free Mushroom relies on simple, everyday ingredients such as onion, chopped, fresh mushrooms, sliced, cornstarch and rice flour. It comes together quickly and makes 4 servings, at about 300 kcal each. The step-by-step instructions below are written to be easy to follow, even on a busy day.
It works as a light main on its own or as a starter alongside crusty bread, and it's just as good for a cozy night in as it is for feeding a crowd. Leftovers keep well, so it's a smart choice for meal prep too.
Updated Jun 30, 2026