Add all ingredients to a medium bowl and toss together until combined.
Serve immediately, or refrigerate in a sealed container for up to 3 days.
Notes
If you find that the salsa or mangos aren’t sweet enough, mix in a little extra sugar.
I find that letting the salsa sit in the fridge for 2 hours before serving helps to meld all the flavors together, but if you don’t have the time to let everything marinate, you can serve it immediately.
For a spicier salsa, use serrano peppers instead of jalapeños.