Preheat the oven to 180°c (160°fan) and line 2 baking trays with baking paper.
In a large pan melt the butter, sugar and syrup over a low heat. Take the pan off the heat and stir in the flour, oats and bicarbonate of soda.
Place teaspoons of the mixture (spaced well apart) onto the baking trays and bake for 10 minutes until golden.
Leave to cool for 10 minutes on the baking trays before removing to a wire rack to cool.