Preheat your oven to 400F.
Cream together the butter, sugar and milk until fluffy.
In a separate bowl, whisk together the dry ingredients, then gradually fold it into the wet ingredients.
Add in the candied ginger pieces and mix.
Roll into equal sized balls and dip the tops in sugar before placing on a parchment lined baking sheet.
Chill in the fridge for 15 minutes.
Bake for 10-13 minutes.
Put the cookies on a cooling rack right when they come out of the oven.