Begin by peeling, pitting, and dicing your ripe mangos. Place the mango pieces into a blender and blend on high for about 60 seconds until a smooth puree forms.

In a separate bowl, sprinkle your gelatin (or agar agar for the vegan option) over cold water. Stir well and allow it to sit for about 30 to 45 seconds until it thickens slightly.

Add the bloomed gelatin to a mixing bowl, along with the sugar, coconut milk, and the mango puree. Use a whisk to combine everything until smooth.

Transfer the combined mixture to a medium-sized pot and warm it over medium-low heat, whisking continuously for about 4 to 5 minutes without boiling.

Once heated properly, remove from heat and pour into serving bowls or molds. Smooth the surface with a spatula and refrigerate for at least 6 hours, or overnight.