Make your favorite carrot or spice cake recipe. If you don't have one, you can use a box mix, that's what I did.
Using a mixer, mix the cream cheese and butter together until combined and fluffy.
Add in the remainder of the ingredients and mix. Use a slow speed until the powdered sugar is incorporated then turn it up to medium. Continue mixing until it's smooth.
Taste - add in more lemon or ginger if needed.
Once the cake or cupcakes have cooled, decorate with the lemon-ginger cream cheese frosting. Pipe it or spread it on with a knife. Have fun with it!