Lassi is a popular and traditional yogurt-based drink of the Indian subcontinent. Mango lassi is most commonly found in India and Pakistan though it is gaining popularity worldwide. It is made from yogurt, water and mango pulp. It may be made with or without additional sugar. It is widely available in UK, Malaysia and Singapore, due to the sizable Indian/Pakistani minority, and in many other parts of the world. In various parts of Canada, mango lassi is a cold drink consisting of sweetened kesar mango pulp mixed with yogurt, cream, or ice cream. It is served in a tall glass with a straw, often with ground pistachio nuts sprinkled on top.
Mango Lassi is available in almost every Indian cuisine restaurant in Bay area, CA. Paratha with lassi works best for me:)

Ingredients                                                                   

1 cup plain yogurt
1/2 cup milk
1/2 cup mango pulp
4 teaspoons sugar, to taste
chopped mango for ganishing
A dash of ground cardamom (optional)

Method
Put mango pulp, yogurt, milk, sugar and cardamom into a blender and blend for 2 minutes.

Adjust the ingredients as per your taste, pour into glasses, freeze in the fridge for 30 minutes or serve immediately.Use the chopped mango for garnishing