INGREDIENTS
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2 large onions, peeled (about 1 1/2 pounds)
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2/3 cup all-purpose flour
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1/2 teaspoon salt
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1/4 teaspoon paprika
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1/4 teaspoon freshly ground black pepper
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1/3 cup flat beer
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1 large egg white, lightly beaten
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1 1/2 tablespoons vegetable oil, divided
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Cooking spray
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1/4 cup ketchup