chop the onion into quarters and cut the stems off of the serrano peppers
place the tomatoes, serranos, and 1/4 of the onion in a pot of water on the stove
bring the pot to a boil and allow it to cook until the tomatoes "pop" and the skin starts to peel off
turn off the heat and strain the contents of the pot
peel the skin off of the tomatoes (it should already be coming off)
place the cooked tomatoes, onion, and serranos in a blender with 3 peeled cloves of garlic
blend for about 20-30 seconds on low speed
salt to taste
serve with chips and enjoy!
