Heat the oven to 190C/170C fan/gas 5. Line two large baking trays with baking parchment. In a saucepan over a low heat, melt the butter, sugar, fresh ginger and golden syrup and leave to cool.

Mix the flour, ground ginger and bicarbonate of soda together in a bowl with a wooden spoon. Gradually stir in the cooled sugar mixture and the egg yolk and knead briefly to make a dough.

Roll the dough into 20g balls and put on the prepared baking trays with 3cm between each to allow for spreading. Bake for 8-10 mins until golden brown. Leave to cool on the trays for a min, then transfer to a cooling rack to cool completely.