How to make peanut salsa: Full method
In a small pot, heat the oil over medium heat until very hot but not smoking. Working one at a time and using tongs, fry the chiles for no more than 2 to 3 seconds each.
Transfer to paper towels. After all chiles have been fried, fry the garlic until golden brown, 3 to 4 minutes. Reserve the oil.
Transfer the chiles, garlic and oil to a blender or a food processor and add the peanuts and salt. Blend until the peanuts are coarsely chopped.
Transfer to a bowl and allow to cool to room temperature. Right before serving, mix in the Key lime juice and coriander. Adjust the salt to taste.