Origin: Central America. ‘Probably my favourite summer squash, they have a nutty flavour and melt in the mouth texture’. Known affectionately in the States as ‘UFO squash’ because of their quirky flying-saucer shape. Pick when no more than 5cm across, then steam whole and douse in olive oil and garlic. They have a nutty flavour and melt-in-the-mouth texture. They have a firmer bite than most courgettes with no hint of wateriness. Harvest July-September.