Mix lemon zest and ginger with sugar. Set aside.
Mix together flour, baking powder, baking soda, salt with a whisk.
Add in flavored sugar. Mix well.
Add butter and mix with fingers until crumbly.
Add egg to cream. Mix.
Add cream mixture to flour.
Using a wooden spoon, mix well together.
Pat into an 8 inch round.
Cut into rounds with a biscuit cutter.
Place at least 2 inches apart on a baking sheet.
Brush with cream or milk. Sprinkle raw sugar on top.
Bake for 15 minutes at 450 degrees.
Depending on how large you cut biscuit, you should get 8-10.