INGREDIENTS
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1 pound ground beef , divided into four patties.
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salt and pepper to taste
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big hamburger buns
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onion, sliced and grilled
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bell pepper, sliced and grilled
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chives, chopped
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2 tablespoons butter
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2 tablespoons all-purpose flour
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1/4 teaspoon mustard powder
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3/4 cup beer
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1/2 cup half and half
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1 1/2 cups sharp cheese, grated
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optional: 1 tablespoon horseradish