Zwiebelrostbraten (Traditional Austrian Beef with Crispy Onions)
- Mar 2
- 1 min read

Ingredients (Serves 2–4)
800 g beef steak (sirloin or rump), sliced into thick portions
Salt and freshly ground black pepper, to taste
2 tbsp all-purpose flour
3 tbsp vegetable oil or clarified butter
For the Onions & Sauce:
3 large onions, thinly sliced
2 tbsp butter
250 ml beef stock
1 tsp tomato paste
1 tsp mustard (optional)
To Serve (Optional):
Fried potatoes (Bratkartoffeln) or potato rösti
Pickles or gherkins
Preparation
Prepare the onions:
Toss onion slices lightly in flour.
Heat oil in a pan and fry onions until golden and crispy.
Remove and drain on paper towels.
Cook the beef:
Season steaks with salt and pepper and dust lightly with flour.
Heat clarified butter in a pan and sear beef on both sides until browned but still juicy.
Remove steaks and keep warm.
Make the sauce:
In the same pan, add butter and remaining onions if needed.
Stir in tomato paste and mustard.
Deglaze with beef stock and simmer until slightly thickened.
Serve:
Place steaks on plates, spoon onion gravy over the top, and finish with crispy onions.
Serving Suggestions
Traditionally served with fried potatoes, potato rösti, or Spätzle.
Pair with Austrian red wine such as Blaufränkisch.
Cooking Tips
Use well-marbled beef for tenderness.
Fry onions separately to keep them crisp.
Do not overcook the beef to maintain juiciness.


