Preheat oven at 325 degrees Celsius. Beat sugar and butter till creamy.
Add cardamom, ginger and salt and beat again. Add baking soda and beat once .
Little by little, add flour and mix till the mixture becomes crumbly. ( I used the hand blender here too. You can also add chopped nuts at this point)
Transfer the mixture to a bowl and knead lightly to form a dough. Don't overdo it.
Make small rolls and place on a greased and floured baking tray, an inch apart from each other. You can use the bottom of a steel tumbler to flatten them slightly.
Bake for 15 min. Once cracks appear on the surface, they'll be done soon. Over cooking might lead to the base getting burnt.