In case you were wondering what a "lassi" is (as mentioned in the previous post)...
Lassi
Strawberry-flavored -
Mint-flavored -
It is made by blending yogurt with water or milk and Indian spices. Traditional lassi is sometimes flavored with ground roasted cumin. Sweet lassi, blended with sugar or fruits instead of spices, is also very popular.
Sweet lassi is a form of lassi flavored with sugar, rosewater and/or lemon, strawberry or other fruit juices.
Saffron lassis, which are particularly rich, are a specialty of Sindh in Pakistan and Jodhpur and Rajasthan in India.
Makkhaniya lassi is simply lassi with lumps of butter in it (makkhan is the Punjabi, Urdu, Hindi and Gujarati word for butter). It is usually creamy like a milkshake.
Drinking sweet lassi can cause drowsiness, which might help people with sleep disorders.
http://en.wikipedia.org/wiki/Lassi