4tablespoonssalted butteruse real butter for best flavor
1large yellow onionfinely chopped for even cooking
1poundcremini mushroomsthinly sliced for quick sautéing
2cupsvegetable stock or chicken stockuse low-sodium if possible
½cupdry white winesomething crisp like sauvignon blanc
2teaspoonsdried dillrub between fingers to release aroma
2teaspoonsfresh thyme leavesstems removed
2teaspoonssweet paprikaHungarian-style if available
2tablespoonsWorcestershire sauceadds deep savory notes
1teaspoonkosher saltadjust to taste later
3tablespoonsall-purpose flourfor thickening the soup
1cupwhole milkroom temperature to prevent curdling
¼cupsour creamfull-fat for creaminess, plus extra for topping
1tablespoonfresh lemon juicebrightens the flavor
2tablespoonschopped Italian parsleyfor freshness and color
Freshly cracked black pepperfor finishing at the table
Instructions
Melt the butter in a large pot over medium heat, then add the onion and mushrooms and cook, stirring from time to time, until the onion is soft and the mushrooms have released their moisture.
Pour in the stock, wine, dill, thyme, paprika, Worcestershire sauce, and salt, bring everything to a boil, then lower the heat and let it simmer until the liquid reduces noticeably.
In a small bowl, whisk the flour and milk until completely smooth, then slowly stream it into the pot while stirring and continue cooking until the soup thickens.
Take the pot off the heat and gently stir in the sour cream and lemon juice until the texture is silky and uniform.
Spoon the soup into bowls and finish with extra sour cream, chopped parsley, and freshly cracked black pepper before serving.
Notes
A warm, rustic soup that tastes like it’s been simmering in a countryside kitchen all afternoon.