INGREDIENTS
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1 pound boneless chicken breasts
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1/2 teaspoon fine sea salt
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1/2 teaspoon black pepper
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1/2 cup balsamic vinegar
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1 teaspoon extra-virgin olive oil
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4 tomatoes
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1/2 red onion, finely diced
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1 garlic clove, minced fine
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1 to 2 teaspoons extra virgin olive oil
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1 tablespoon balsamic vinegar
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Salt, to taste
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Black pepper, to taste
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1/2 cup (packed) fresh basil, chopped
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Optional: 1/2 to 1 cup fresh chopped mozzarella
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Additional basil, for garnish