""When we were little my Oma would serve this sauce over either pork or beef."..."
INGREDIENTS
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2 tablespoons butter
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3 medium onions, coarsely chopped
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1 teaspoon white sugar
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1/2 teaspoon paprika
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1 tablespoon white vinegar
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1 cup chicken broth
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1 slice dark rye bread, torn into pieces
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salt and pepper to taste