Cook's notesIf you want to increase the amount of pesto or simply thin it out, place in a small pot, heat and add a couple of spoonfuls of the boiling pasta water to the sauce. (This works for just about any pasta sauce.)
VariationsAdd sautéed red peppers cut into thin strips, chunks of fresh tomatoes, thin slivers of smoked chicken, sautéed mushrooms, chopped spring onions or rocket leaves.
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