What is cream of tartar?!?! .. i’ve seen in so many recipes but m still not sure if its the “cooking soda” or “tartaree” or is it sumthin else?!?! 
something else :p
According to Nigelle:
Cream of Tartar is a natural, pure ingredient left behind after grape juice has fermented to wine. Cream of Tartar is used to stabilize egg white foams. It is also a major ingredient in baking powder.
Can sumbudy tell me wuts it called in 'urdu'?!?! :(
Is this like tartar sauce that you put in a fish sandwich? If so, I must say I love it! Yummy.
So … nobody knows!!! 
Sorry, don't know what its called in urdu. Probably the same as in english?
Something that I use ocassionally when whipping egg whites when baking. Seems to add lightness to batters.
Makes the eggwhites peak really well.