We just tried this recipe today and the dough came out perfectly. Slightly tricky to get on to the tray in the exact cutter shape but very simple otherwise.
175g (6oz) flour
1 1/2 teaspoons bicarb soda
1 teaspoon ground ginger
1/2 teaspoon cinnamon
50g (2oz) butter
85g (3oz) soft brown sugar
1 1/2 tablespoons golden syrup (I substituted maple syrup)
1/2 tablespoons treacle
Mix together flour, soda, spices in a large bowl. Rub in butter until the mixture resembles breadcrumbs.
In a separate bowl mix together egg, sugar, syrup, treacle.
Pour the liquid into the flour mixture and stir to combine.
Knead with a little flour until smooth.
Wrap in clingfilm and refrigerate for 10 mins.
Roll out until 5mm thick. Using cutters, cut out shapes and carefully transfer to greased or lined baking trays.
Bake for 6-8 mins at 190C/375F or until golden.
Allow to cool on a wire rack.
Decorate if desired.