Spiced cranberry bars

This recipe is adapted from Deb Perelman's gorgeous cookbook The Smitten Kitchen. These are really simple to make, the flavour is fabulous, really tangy and fresh and they last for days – well, not in my house, but in the average restrained environment.

In a food processor blitz all the dry ingredients together until the mix looks like breadcrumbs, add the egg yolk and pulse for a couple of seconds.

Turn the mix out into a bowl and turn half the mix into the prepared tin and press into the base, make sure you get right into the corners.

Next blitz the cranberries, cornflour, sugar and zest in the food processor – you just want them roughly chopped. Spread the filling over the crumb base, then sprinkle the remaining crumb over the cranberry and bake for 30 to 35 minutes until lightly brown on top.

Cool completely before cutting into squares.