Mangú is a Dominican dish I grew up eating, is made of mashed green plantains or platanos verdes. We peeled them first, cut and boiled in salt, when soft we mashed them with butter or oil and a secret to keep it soft for hours is to add cold water, yes, cold water.
More many peeling a green plantain is a pain and like my mom would said they will do it the lazy way which is boiling it first, shocking it and then peeling. But peeling a plantain is not that difficult all you need is to practice ones you are able to separate the peal without lifting any of the fruit is a sign that you have what it takes to cook. First cut the ends, use the point of sharp knife to cut across the ridges of the plantain lift the peel from the cut ridges, using the knife only to help lift. Be careful not to cut the ridges too deep, or you risk cutting off the plantain.
1/4 cup of olive oil
2 tablespoons butter (may use a butter substitute like margarine)
1/2 cup Cold water (DO NOT SUBSTITUTE WITH HOT WATER)
1 tsp Salt
Boil plantain in water with pinch of salt to taste cook until soft to mash
Add butter, cup of cold water, and the oil when you are done mashing it
Slice onion medium size add vinegar and a pinch salt let it sit for 5 min in warm oil
Remember to pill the plantain before boiling it.
For the presentation boil 4 eggs, cut them in half, remove the egg yolks and fill it with mangu. Ones you fried Queso de Freir and/or Salami cut them in small pieces and placed them on top the mash plantains.