I have only had sahlab once prepared properly in Istanbul. It was delicious, creamy, frothy, heaven!
If you have never had it, sahlab (or sahlep) is made from ground orchid root, mixed with milk and flavorings such as almond or pistachio. The cafe where I drank it made it frothy like a cappuncinno.
I have been able to find sahlab pudding mixes (at my favorite spice store on Lexington somewhere in the 20s) but am still looking for a cafe/restaurant that can make it the way I had it in Istanbul.
(Or any ideas as to how to make it the same way at home? I've experimented with the mix- trying to use different ratios of mix to milk, tried to froth the milk- nothing's worked).