The value of tinned fruit (US: canned fruit) can be underestimated. Bee Wilson points out that the "4 P's" of Pineapple, Pears, Plums and Prunes all do well if they are tinned. She recommends tinned prunes mixed with some booze if people arrive unexpectedly. And I favour gooseberries or rhubarb which can be rapidly turned into a fool