Meanwhile, the lime produced hints of sour, the soy a bit of saltiness, the salsa a tiny bit of sweetness and the pork a delicious savouriness.

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There was sweetness from the sauces, sour from the lime, saltiness from the fish sauce and spiciness from the chillies.

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Here, pungent fish sauce and plenty of lime juice keep the dressing pleasantly sour and sharp.

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Citrus bergamia, as it's known in botanical circles, first showed up 300 years ago in Southern Italy, the result of crossbreeding a sour orange with "something else, " variously identified as a citron, a lemon, a lime or a Palestine sweet lime.

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