This classic Russian comfort dish features tender strips of beef in a rich, velvety sour cream sauce with earthy mushrooms and caramelized onions. Served over egg noodles or rice, it's the ultimate indulgent weeknight dinner that tastes like you've been cooking all day, but comes together in under an hour.
⏱️60 min
📊Medium
👥4 servings
🍽️Main
meatfamilyfestive
Ingredients
900 gbeef sirloin or tenderloin
400 gmushrooms, sliced
3 piecesyellow onions
300 mlsour cream
240 mlbeef broth
2 tbspall-purpose flour
4 tbspbutter
2 tbspolive oil
1 tbspdijon mustard
1 tspsalt and black pepper
Instructions
1PREPARE THE BEEF: Cut the beef sirloin or tenderloin into thin strips about 1/4 inch thick and 2-3 inches long, cutting against the grain for maximum tenderness. Pat the beef dry with paper towels, as moisture will prevent proper browning. Season generously with salt and freshly ground black pepper on both sides. This drying step is crucial—it creates a beautiful caramelized crust when seared.
2SEAR THE BEEF: Heat 1 tablespoon of olive oil and 1 tablespoon of butter in a large, heavy-bottomed skillet over medium-high heat until the butter is foaming and just beginning to turn golden brown. Working in batches to avoid overcrowding the pan, sear the beef strips for 2-3 minutes per side until they develop a deep brown crust but remain slightly pink inside. Transfer the seared beef to a clean plate and repeat with remaining beef. Chef's tip: Do not move the meat while searing—let it sit undisturbed for 2 minutes to develop that prized caramelized exterior.
3CARAMELIZE THE ONIONS AND MUSHROOMS: Add the remaining 2 tablespoons of butter to the same skillet, then add the sliced onions and cook over medium heat for 8-10 minutes, stirring occasionally, until they become soft, translucent, and begin to caramelize at the edges with deep golden-brown spots. Add the sliced mushrooms and cook for another 5-6 minutes, stirring frequently, until the mushrooms release their moisture and become tender and lightly browned. The mushrooms should have reduced in volume significantly and any liquid should have mostly evaporated.
4CREATE THE SAUCE BASE: Sprinkle the flour over the mushroom and onion mixture, stirring constantly for 1-2 minutes to coat everything evenly and cook out the raw flour taste. Pour in the beef broth slowly while stirring continuously to prevent lumps from forming. Add the Dijon mustard and stir well to combine. Bring the mixture to a gentle simmer over medium heat, stirring occasionally, and let it cook for 3-4 minutes until it thickens slightly and coats the back of a spoon.
5RETURN THE BEEF AND FINISH: Reduce the heat to medium-low and return the seared beef to the skillet along with any accumulated juices on the plate. Stir gently to distribute the beef evenly throughout the sauce. Cook for 2-3 minutes until the beef is heated through but still tender and slightly pink in the center. Remove the skillet from heat and let it cool for 1 minute before stirring in the sour cream, which prevents it from curdling. Stir thoroughly until the sauce is smooth, creamy, and has a beautiful beige color.
6FINAL SEASONING AND SERVING: Taste the stroganoff and adjust the seasoning with additional salt, pepper, or a splash of Dijon mustard to your preference. The sauce should be rich, velvety, and coat the beef beautifully. Serve immediately over freshly cooked egg noodles, buttered rice, or mashed potatoes, garnishing with fresh parsley and a dollop of sour cream if desired. Chef's tip: If the stroganoff needs to sit before serving, keep it warm on very low heat and do not let it boil, as high heat will cause the sour cream to separate and become grainy.