According to Alton Brown...
Ghee is an additional step after you make the Clarified Butter:
"At first the butter will melt, then the water will begin to boil out, then the milk solids will aggregate, sink to the bottom. When the liquid is clear, you've got clarified butter. Keep cooking until the butter begins to brown and you've got ghee. This entire process will take 1 to 1 1/2 hours depending on the butter, the pan, the heat, etc. "