Preheat oven to 350°.
Beat sugar and butter at medium speed of an electric mixer for 2 minutes. Pour into a lightly greased 8" square baking pan.
Add juice, molasses, and egg and beat for one minute.
In a small bowl, combine flour, ginger, baking powder, baking soda, cinnamon, and nutmeg. Lightly whisk to combine.
Slowly add flour mixture to butter mixture, beating until well combined.
Bake at 350° for 25-30 minutes or until a wooden pick inserted into the center of the cake comes out clean.