Dice the onion and sauté it in the oil and 1 tsp. salt over a low flame until caramelized. Cook and drain the noodles. Pour the onions, and the oil they were fried in, into the noodles. Add the eggs and the rest of the salt (taste and add more salt if desired). Pour mixture into a greased pan. You can use a 9x9 square pan for a taller kugel, or a 9x13 for a thinner one. Bake on 375°F for 50 minutes, until top is golden brown.