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Melt butter and oil in a large skillet with a lid.
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Cook onions for about 2 minutes.
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Add garlic and cook for 30 seconds.
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Add beef and cook for about 2 more minutes, browning all sides of the beef.
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Salt & pepper the beef as it browns.
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Sprinkle flour over beef and blend using your spatula.
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Add the tomato paste; again, blend using your spatula.
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Turn the heat to medium-high and slowly pour in the can of beef broth. Stir until well blended.
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Add salt and pepper to the skillet with the broth.
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Cover; reduce heat to a low simmer and cook for 30 minutes.
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Remove cover and stir; cook uncovered for about 15 minutes.
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Remove from heat and stir in red wine and sour cream.
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Serve over egg noodles.