Begin by adding the diced mangoes, yogurt, milk, honey (or maple syrup), ground cardamom if using, lime juice, and salt into a high-speed blender.
Blend the mixture on high until it becomes completely smooth and creamy, with no lumps remaining. Taste the mixture and adjust the sweetness by adding more honey or syrup if desired.
Carefully pour the blended mango mixture into popsicle molds, leaving just a small gap at the top in each mold, as the mixture will expand when freezing.
Insert popsicle sticks into each mold, ensuring they stand upright, then transfer the molds to the freezer.
Let the popsicles freeze for a minimum of 6 hours, or until they are completely solid throughout.
To remove your delicious popsicles, briefly run warm water over the outside of the molds for a few seconds, which will help loosen the popsicles, then gently pull them out by the stick.
Notes
Present the popsicles on a vibrant plate and drizzle with honey or sprinkle with crushed pistachios for added texture.