OK, this novella isn’t actually about a time machine. Well, not a real one anyway. I quote from the blurb:

It tells of Ashok’s attempts to cook food like mum used to make. If he succeeds, his time machine will have worked and he’ll be transported back to a time when the family home was alive with the sounds of cricket, the smell of food and the presence of his mother. The story is a tender, funny ode to home-cooked Gujarati cooking (‘not tandoori or balti, are you rogan joshing me?’), peppered with family recipes and outdated wisdom from over-bearing aunties. It may well make you want to cry. It will definitely make you hungry.

It has Gujarati home cooking recipes. It is only £1. And of that 25p goes to the Roy Castle Lung Cancer Foundation. Just buy it, OK?