Peel the potatoes and wash them. Cut them in half lengthwise. Then, slice the potatoes in pieces approximately 3 mm or ⅛" thick. Peel and chop the onion into small pieces.

At this step, you'll have to choose one version. Healthy version: In a non-stick frying pan, place one or two tablespoons of olive oil and when the oil is hot, add potatoes, onion, salt to taste and 250 milliliters or 1 cup of water and bring it to boil. You may need to turn down the heat slightly, so the potatoes do not burn. Cook for about 20 minutes or until potatoes are soft. Stir occasionally. Remove the potatoes and onion from the pan with a slotted spoon. Traditional version: In a non-stick frying pan, heat the olive oil on medium high heat, add potatoes, onion and salt to taste. The oil should almost cover the potatoes. Cook for about 20 minutes or until potatoes are soft. Stir occasionally. Remove the potatoes and onion from the pan with a slotted spoon.

In a bowl, place 16 tablespoons of gram flour and 16 tablespoons of water, add salt and beat by hand with a fork. Pour in the potato onion mixture. Mix all together.

Place one or two tablespoons of olive oil in a frying pan and heat on medium heat. Pour in the potato onion mixture and cook over medium heat for about five minutes. Place a plate over the tortilla and turn it around and cook the other side for about another 5 minutes. Turn the tortilla again if required until it's totally cooked.

Add black salt to get a truly authentic egg-like taste.