Preheat oven to 220c (fan bake is better)

Mix all of the ingredients in a bowl, into a smooth dough. You'll need to get stuck in with your hands

Tip onto a well floured baking tray, or baking paper

You can either cut it into squares now, or save it until it's baked. The kids prefer the latter and it's less mess

Bake for 15 to 20 minutes, until they start to turn a golden colour

Cool on a wire rack when done