Preheat the oven to 160C and line a baking tray with baking paper.
Add all of the ingredients (except the Smarties) to a mixing bowl and combine to make a sticky biscuit batter.
Form a round cookie shape on top of your baking tray and top with the Smarties.
Bake for 12 minutes.
Remove from the oven and allow to cool for a few minutes before enjoying.
