Cheat’s ginger pudding

Having delayed homecoming with a pint or two I really didn’t have time for, then trying to cook, clear up the house, lay the table, bath, change and look calm, I inevitably call on this pudding. I’ll probably have to dash to the shops for the cake, having not picked it up after the pub. It always goes down a treat with guests - I just have to remember which ones I have given it to already!