c("Heat the oil in a 8-9 inch skillet. Add the slices of potato one at a time to avoid sticking together.", "Alternate layers of potatoes with layers of onions.", "Cook slowly over medium heat, turning the potatoes until tender, not brown.", "Drain potatoes in a colander, save oil.", "Make sure skillet is very clean for later use.  In a bowl, beat eggs with a fork until slightly foamy.", "Salt to taste.  Add the potatoes, press down to cover potatoes completely with egg.  Return to skillet, heat 2 tablespoons of saved oil until smoking point.  Add the mixture, spread it out. Rapidly, lower the temperature to medium-high.", 
"Shake the pan often to avoid sticking.", "When the bottom is brown, cover the skillet with a plate, turn skillet up-side down, remove tortilla, slide off plate with uncooked side down into skillet and cook the other side, Turn several times until cooked")