Claire Saffitz loves mango lassi so much, she decided to turn it into a dessert. The beloved South Asian yogurt-based drink is sweet, refreshing, and one of the best beverages out there, so why not? The mousse’s curd base incorporates fully ripe frozen mango pieces that get blended into the mixture, adding to the creamy texture and fruity sweetness. For the best results, cut up and freeze your own mango, but store-bought frozen mango from Trader Joe’s (Claire’s preferred brand) also works great. The mousse can be covered and refrigerated for up to 3 days, so make it ahead of time when hosting so your dessert is ready to be served as soon as dinner is done.