Grease and flour two bread loaf pans.
Preheat oven to 350 degrees Fahrenheit
In large bowl hand mix flour, baking powder, ground ginger, cinnamon and salt.
In another large bowl, cream butter and sugars until light and fluffy with a mixer.
Add in eggs, one at time, the grated ginger root and vanilla into the butter mixture.
Add the milk, mix in the flour mixture until incorporated.
Pour 1/2 the batter into a prepared pan and repeat with the other half.
Bake 45 to 50 minutes, or until a toothpick inserted into the center of the cake comes out clean.
Let cool in pan for 10 minutes, and then turn out onto a serving plate.
Dust with confectioners' sugar before serving