This came about because I had a whole pineapple, and six cutlets of mutton (that's older/adult sheep, has a fuller flavour than lamb), and three people to feed. Had to use the pineapple, because it was ripening happily on the sink, and was getting to the point of being nearly over ripe so... I tried making a sauce-y type marinade without actually marinading. The fresh pineapple can probably be replaced by drained, tinned pineapple, NOT in syrup though! That would be waaaay too sweet.