INGREDIENTS
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1/2 cup mayonnaise
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1/2 cup sour cream
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1/4 cup prepared horseradish
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2 teaspoons honey
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2 teaspoons Dijon mustard
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Salt and freshly cracked black pepper
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2 cups buttermilk
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2 onions, thinly sliced root to tip
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Vegetable oil, for frying
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2 cups all-purpose flour
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2 teaspoons cayenne
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2 teaspoons paprika
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Salt and freshly ground black pepper
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8 fresh onion rolls, buttered and toasted until golden
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4 thick slices sharp Cheddar
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2 pounds good-quality rare roast beef, sliced thin