Preheat the oven to 180°C(fan)/200°C/gas mark 6. Line a baking tray with greaseproof paper.
Mix all the ingredients together in a bowl. Spoon heaped tablespoons of the mixture out onto the baking tray and flatten with a fork or the back of a spoon.
If using raisins make sure they're pressed well into the cookie mixture to avoid burning.
Bake in the pre-heated oven for 15-18 minutes until turning brown.
Allow to cool on the baking tray for five minutes then turn out onto a wire rack until cool.