Rabri is a milk based dessert served as main or along with other  indian sweets. Just 3 main ingredients – milk, sugar and nuts.You can add flavour with cardamom, but as we keep boiling milk and reduce it, it turns slightly cream in colour and smells sweet. I have not tried rabri anywhere outside. Had first time when I made it for rasmalai. I made it with saffron, cardamom and all those things, but just with sugar, milk and nuts, it turns out great.
A rich dessert and can be served warm or cold. I like  it always cold, but certain other sweets like Jalebi, malpua and gulab jamun goes well with warm rabri. With Diwali nearing, I am sure this will be useful for many.