Mix & adjust: Add all of the ingredients to a medium-sized bowl. Then use a spoon to stir and mix all of the ingredients together until thoroughly combined. Let this rest for 5 to 10 minutes then taste the aji. Add more salt if you feel it needs it, more vinegar if you prefer it to be tangier, or more water if you want it to be more refreshing.
Store the aji picante in a jar and use it when needed. Enjoy!