Things to do in Summer - indoors!

Last week I was flicking through an old-fashioned recipe book and my eye lit on a Dundee cake. I like these at Christmas because they have less fruit than trad cake [therefore less expensive].  I just fancied making one - so: 

 Trouble is, the directions say, 'will improve and develop in flavour if it is kept 2 or 3 days before eating.'  Hmm Thinking....