Preheat your oven to 350°F (175°C).

In a large mixing bowl, whisk together the coconut milk, sweetened condensed milk, eggs, sugar, vanilla extract, and salt until combined and smooth.

Grease a medium-sized baking dish (about 8x8 inches) with coconut oil or butter.

Carefully pour the custard mixture into the prepared baking dish. Optionally, strain it for a smoother texture.

Bake for approximately 30 minutes until set with a slight jiggle in the center.

Let the custard cool at room temperature for about 10 minutes, or refrigerate for at least an hour for a firmer texture.

Cut into squares and garnish with shredded coconut, mango slices, and sesame seeds before serving.