Preheat oven to 180°C. Grease a baking tray. Take butter in a bowl and soften it with a wooden spoon.
Add sugar and mix well with the butter. Sift flour with soda bicarbonate and cinnamon powder into the bowl. Add oatmeal, chopped raisins, lemon rind, golden syrup and mix. Add chilled milk and mix into a dough.
Do not knead the dough too much. Take marble sized portions, roll them into balls and press lightly. Place these on the greased baking tray keeping sufficient distance between each.
Bake in the preheated oven for about 10 To 15 minutes. Turn them onto a wire rack to cool. Store in airtight tin.