"We've got the secret for the best-ever sauce...."
INGREDIENTS
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8 oz. extra-wide egg noodles
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4 tbsp. unsalted butter, divided
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1 lb. skirt steak
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2 tsp. kosher salt, plus more
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4 tbsp. all-purpose flour, divided
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3 tbsp. neutral oil
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8 oz. baby bella mushrooms, sliced
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2 large shallots, thinly sliced
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3 cloves garlic, finely chopped
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1 tbsp. Dijon mustard
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1 tbsp. tomato paste
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1 tbsp. Worcestershire sauce
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2 c. low-sodium beef stock
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1/2 c. full-bodied red wine
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1/2 c. sour cream
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Chopped fresh parsley, for serving