Using a knife, cut avocados lengthwise and width wide without cutting the peel. Scoop avocado out with a spoon into a bowl.
Add diced jalapeno, white onion, parsley or cilantro and juice of 3 limes.
Add a teaspoon of salt and mix lightly with a wooden spoon. If you like it chunky leave it chunky; if you like it more smooth, mash until you reach your desired consistency.
Add 1 diced tomato (optional).
Serve with plantain chips.
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