Grandmother´s recipe: Eggs Omelette

Hello,

I liked would like to share with you my grandmother´s eggs omelette recipe, or spanish´s omelette.
For To make one omelette for four persons you need:

- 6 or 7 eggs
- 3 potatoes (more or less 600gr)
- 1 little small onion
- 2 olive oil glasses(?) 
- salt

Peel and chop the onion into little cubes. If the potatoes was were dirty, whas it wash them and after peel it and cut it in half and long lengthwise. After cutting every piece like fine half moons like 1 or 2 centimeters.
Put the potatoes and the onion in a pan with the warm oil (slow fire) for 20 or 30 minutes.
Removed the frites and put in a plate without the oil. Put the oil in another container and keep it for another ocassion.
Now broke break the eggs, put it them in a container and beat it them. Put Take the salt and add to the potatoes and the onion. Mix well.
Now put this mix in the pan with a litlle oil. Move a little with a wooden spoon and wait to until the mix will be curd is set. Separets Separate the edges and covers the pan with a plate and turn it around. Put it in the pan one more time for curd to set it.

And finally you will have the famous Tortilla Española

I hope you like it.

Reading this is making me hungry!

My corrections are in red and my suggestions to sound more natural are in blue/grey.

No estaba seguro sobre la medida de "glasses". Puede ser "cups". ¿Cómo lo dirías en español?

Grandmother´s recipe: Spanish Omelette

Hello,

I would like to share my grandmother's Spanish omelette recipe, or Spanish Tortilla.
To make one omelette for four people you will need:

- 6 or 7 eggs
- 3 potatoes (approx 600gr)
- 1 small onion
- 2 wine glasses of olive oil 
- salt

Peel and chop the onion. If the potatoes are dirty, wash them, then peel and cut them in half lengthwise. Then cut each half in fine half moons, about 1 to 2 cm thick.
Put the potatoes and the onion in a pan with the warm oil (low heat) for 20 or 30 minutes.
Strain the potatoes and onion and put on a plate. Put the oil in another container and keep it for another occasion.
Now break the eggs into a bowl and beat them. Add the salt and then add the potatoes and the onion. Mix well.
Now put this mixture in the pan with a little oil. Move a little with a wood spoon and wait until the mix sets. Lift the edges and cover the pan with a plate and turn the whole thing over so the omelette in on the plate. Slide it back into the pan again until it sets.

And at last you will have the famous Tortilla Española. 

I hope you like it.

Sounds delicious!