In a large bowl, add the mango, grapefruit, orange, cucumber and papaya. Set aside.
In a small saucepan over high heat, add the water, sugar, chiles, nuts, and salt.
Bring all to a boil, then reduce to a simmer. Simmer for 10 minutes stirring frequently, until all has reduced and is syrup-like in consistency.
Pour the dressing over the fruit, then toss all to combine.
Serve and enjoy!
Video
Notes
I like to use a mortar and pestle to crush the chiles and nuts. If you do not have one, you can pulse them with a food processor or simply chop them finely with a knife.