In a bowl mix the flour, baking soda, spices and salt.
In another bowl, pour the sugar and the butter. Whip with the mixer (or a whisk) to obtain a smooth cream.
Add the egg and golden syrup. Whip.
Add the dry ingredients and continue to whip until you get an homogeneous dough. Separate the dough in 2, and form 2 balls.
On floured parchment paper, spread the first ball of dough to a height of 0.3 to 0.4 cm. Flour as needed. Cut out shapes with the cookie cutters. Transfer them to a cookie sheet covered with parchment paper or silicone mat.
Collect the offcuts and repeat until all the dough is used. If necessary, place your dough in the refrigerator for 15 minutes if it becomes too difficult to work.
Proceed in the same way with the other half of the dough.
Preheat the oven to 180°C (350°F).
Bake for about 12 minutes, until the cookies have a light golden color. If you have a convection oven you can bake several baking sheets at the same time, otherwise bake them one by one.
Transfer the cookies on a rack and let cool completely. You can eat them as is, or decorate them.