Preheat the oven to 200˚C and prepare a baking tray lined with baking paper.
Put the butter and sugar (white and brown) in your food processor and mix until combined (about 5-10min). You can also use a bowl with an electric mixer if you don’t have a food processor.
Cut off a piece of ginger about 2-3cm in size and grate it thinly (though you can use as much ginger as your taste buds suggest).
Add the ginger and mix well.
Add the flour and baking powder and mix everything together.
Lightly flour your work surface and put the dough onto it. Now knead it with your hands until you have a uniform, non-sticky dough. (Depending on the dough you may have to add some more flour).
Use the palm of your hands to form small, chestnut sized balls .
Place them on your metal sheet with some distance between them and press them flat with either the palm of your hand or a moistened fork.
Bake the ginger biscuits in the oven for 15 minutes.
Let the biscuits cool down and enjoy with a cup of coffee or tea!