They aren't potatoes but fried malanga, which is like a potato but less acidic. Don't ask what Hialeah has to do with it.
You'll never know unless you've been there.

Ingredients:

Some fresh malangas, chopped and/or grated
A few eggs
A pound of hash butter, or however much you need
Salt, pepper and garlic to taste

Directions:

Beat the eggs, then add the salt, pepper, garlic and malanga to form a thick paste. Refrigerate for one hour. Melt and heat the hash butter in a saucepan over the stove. Take out the malanga paste, roll into balls and drop into the heated butter and let them fry until crispy.  Click below for more recipes...

Source: CookingWithCannabis