A creamy, paprika-scented Hungarian mushroom soup with sautéed mushrooms, a light roux, and a touch of sour cream and lemon for brightness. Comforting and easy enough for weeknights.
In a large pot or Dutch oven, melt 2 tablespoons butter over medium heat. Add the chopped onion and a pinch of salt. Cook until translucent, about 5–7 minutes. Stir in the garlic and cook 30 seconds until fragrant.
Increase heat to medium-high and add the remaining butter. Add sliced mushrooms in a single layer if possible. Let them sit undisturbed for a couple of minutes to sear, then stir. Cook until they release their liquid and it evaporates, about 8–10 minutes. Season with salt, pepper and paprika.
Sprinkle the flour over the mushrooms and stir to coat. Cook the flour for 1–2 minutes. Slowly pour in the broth while stirring to avoid lumps. Bring to a gentle simmer and cook 10–12 minutes.
Reduce heat to low. Whisk heavy cream with sour cream, temper with a ladleful of hot soup, then stir the warmed cream back into the pot. Heat gently—do not boil after adding cream.
Stir in lemon juice and taste for seasoning. Ladle into bowls and garnish with chopped dill or parsley. Serve with crusty bread.
Notes
Don’t overcrowd the pan when browning mushrooms; they need space to caramelize.
For a smoother soup, puree a portion with an immersion blender then stir back in.
Leftovers keep well in the fridge for 3–4 days and often taste better the next day.
To make dairy-free, use coconut milk or cashew cream and skip sour cream.