1/4 cup freshly squeezed lemon juice |
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1/4 cup finely minced red onion |
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2 teaspoons finely minced garlic |
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Pinch of salt plus more to taste |
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2 bunches fresh sweet basil, washed (about 38 leaves) |
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2 tablespoons chopped fresh flat-leaf parsley |
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1 cup lightly toasted walnuts plus a few pieces |
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3/4 cup extra-virgin olive oil |
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2 large or 3 medium heirloom tomatoes |
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