""Being a Brit, bangers & mash is a fairly regular staple on the household menu. I tried recipe after recipe for the perfect onion gravy to go with it, and this is by far and away the best."..."
INGREDIENTS
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6 tablespoons butter
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3 medium onions, thinly sliced
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1 tablespoon all-purpose flour
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1/2 cup red wine
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1 (14.5 ounce) can chicken stock
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2 teaspoons Dijon mustard
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1 teaspoon Worcestershire sauce
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salt and ground black pepper to taste