Blackberry and strawberry ripple traybake.

We have been trying to buy a new fridge freezer today. (This is a very dull topic!) we have resorted to purchasing online as both John Lewis and Currys couldn't deliver, install and remove our old ones without it costing a fortune....

As I have been trying to reduce the amount of stuff in the freezer, I needed to use up some frozen blackberries. Lo and behold- this week's lunchbox treat....