INGREDIENTS
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6 medium white onions, sliced
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3 tablespoons vegetable oil
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1 cup water
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8 cups beef broth (Swanson is best)
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1/4 teaspoon ground black pepper
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5 plain hamburger buns
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2 1/2 teaspoons salt
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10 teaspoons shredded parmesan cheese
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1/2 teaspoon garlic powder
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10 slices provolone cheese
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