If the ghee is liquid, keep in the fridge till it softens.
I didn't do the rolling method. I kept the bowl with the dough in the fridge, took it out and rolled by hand. It was slightly messy. It was later I figured out that you could do this way, and it would give you smaller, cuter looking cookies.
I topped with pistachios - you can use almonds, some use cloves and sometimes leave it plain!
The bigger the cookies, the more it takes to bake. I baked mine for 35 minutes to settle.
They don't spread much since there are no leavening agents, so you can place the cookies closer to each other.