This pop is inspired by sweet, cooling lassi — my favorite drink to have with Indian food.
In a blender, purée the mango, yogurt, sugar, 1 teaspoon of the lime juice, and the cardamom until smooth and creamy. Taste and add more lime juice if necessary.
Spoon the mixture into ice pop molds. Slice in the lime slices (if using) and insert sticks. Freeze until firm, at least 6 hours or up to 1 week.
To unmold the pops, run hot water over the outsides of the molds for a few seconds, then gently pull the sticks.