Michelle Darmody: How to bake my rhubarb and spelt cake — and the mistakes to avoid

Rhubarb and Spelt Cake.

I absolutely love this sweet buttery recipe. You can substitute any soft fruit in place of the rhubarb. 

It can also be baked in a square tin and cut into cubes for a picnic, instead of the more-difficult-to-transport cake slices.