Does anyone know the easiest way to engrave text onto a curved surface?

I want to type out a sentence then engrave it onto a sphere. The only way I have been able to do it is to use the Boolean difference. This for some reason takes 5 min per letter and sometimes fails.

I know there is a way to project the font to the curved surface of the sphere, then engrave it down about 1mm deep, but for the life of me I cant get it to work.

Anyone able to provide a mini tutorial for me? My brain is just stuck on this one.