Ingredients
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1 tablespoon vegetable oil
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1 large yellow onion, cut into thin slices
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2 tablespoons butter
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2 tablespoons flour
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1 (10 3/4 ounce) can condensed beef broth
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8 ounces fresh mushrooms, sliced
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1 teaspoon Worcestershire sauce
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salt and pepper, to taste
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1 cup sour cream
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2 lbs top round steaks, sliced into thin strips
Instructions
- In a large frying pan over medium-high heat, heat the oil and brown the steak strips and onion.
- Remove the steak and onions from the pan. Add the butter and melt over low heat.
- Whisk in the flour and stir with a wooden spoon until smooth.
- Whisk in the beef broth and stir until the mixture thickens slightly, about 2 minutes.
- Return the beef and onions to the pan. Add the mushrooms.
- Simmer for 30 minutes until tender.
- Taste, then season with the Worcestershire sauce, salt, and pepper.
- The topping can be refrigerated, covered, up to this point.
- Just before serving, reheat gently and stir in the sour cream.
- Do not allow the topping to boil.
- Keep hot in a crockpot or chafing dish over very low heat.
- Serve over baked potatoes.