Using super ripe mangos, peel and cut into chunks to blend. If you want some bites of mango in your popsicle, you can also cut some little chunks and set them aside to add later in the popsicle molds.
Add the sugar and juice of 1 lime to the mangos. Mix thoroughly then let it sit for 20 minutes to macerate. Note: Add more sugar if you like it really sweet. Also consider adding a bit more sugar if you plan to use water instead of mango nectar.
After 20 minutes the mangos should be softened and there will be a pool of mango syrup at the bottom.
Pour into a blender along with the mango nectar (or water). Blend until smooth.*If you want to make mango paletas without the chamoy & tajin, add a pinch of salt to the blender. It brings out the mango's natural flavor and will help since fruits lose some flavor when frozen.
In a sanitized silicone popsicle mold, first add a layer of chamoy at the bottom, then some mango chunks (if using), then sprinkle some tajin. Pour in the mango puree about half way, then repeat the process and finish the top with some more chamoy and tajin. You can alternate and add as much or as little as you want. I think a 3:1 ratio of mango to chamoy/tajin is a good balance for most people, but I like it with a bit more chamoy/tajin.
Optional: Lightly mix/swirl the filling for a prettier paleta. You can use a popsicle stick for this- just make sure you don't overmix it or you won't see any swirls.
It depends on your popsicle mold, but be mindful about the popsicle stick placement when you're sticking them into the mold. You don't want to push them all the way down because it leaves very little room to hold the stick, but you also want to make sure its deep enough. Also make sure it is centered from all sides.
Freeze for at least 8 hours. To remove from the mold, place it in warm water for 10-20 seconds to loosen. With a little wiggling and force, the popsicles will slide out perfectly. I like to stretch the sides of the silicone mold to help loosen it up a bit more.
Store in the freezer for up to 1 week.
Notes
Recommended: Before eating these paletas, I recommend letting them sit on the counter for a few minutes to soften. When they are slightly softened, you can taste more of the mango flavor.