"The tomato jam makes this sandwich: Its honey and vinegar give it sweetness and bite! ?Elliot..."
INGREDIENTS
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1/2 canned San Marzano tomato, diced
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1/8 cup chopped red onion
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1/2 garlic clove, minced
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1 tablespoon red wine vinegar
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1/2 teaspoon honey
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8 pieces whole-grain bread
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2 cups shredded lowfat cheddar, divided
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8 slices prosciutto
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4 tablespoons olive oil, divided