Ingredients:
In
a medium bowl mix the potatoes, onions, and 1/2 teaspoon salt by hand.
Heat
2 tablespoons of the oil in a large non-stick frying pan. Fry the potatoes
and onions on low heat and cover with a lid for 5 minutes to let them
soften. Turn up the heat for another 5 minutes until golden brown. Remove
from the stove and drain off any excess oil.
Meanwhile
break the eggs into a medium bowl. Add the remaining salt and milk and
whisk vigorously until frothy. Add the potatoes and onions to the eggs and
mix until fully integrated.
Heat
the remaining 2 tablespoons of oil on a high heat and pour in the mixture,
moving it around in the pan to help the tortilla to rise. Fry until golden
brown, stirring occasionally until it has set. Then turn down the heat to
allow the inside to cook. After a few minutes turn up the heat in order to
brown the tortilla.
When
it's cooked place a large plate over the frying pan and flip the tortilla
onto it. Return to the pan and fry the other side until golden brown.
Clean the frying pan and return to stove.