I can't remember where I got this from. But I keep a can of cherries in the cupboard, a sachet of the pudding mix and knowing that the corner shop stocks cream, have always got a posh pud on hand for unexpected guests. Use deep glasses so that the layers can be seen. You want the light to shine through the cherries. The original recipe called for chocolate instant pudding, but my family prefers toffee flavour. Oh, and I always make twice as much because people always want seconds.