1. Slice Slice root of top of onion; cut in half. Peel and slice. Use a large, heavy skillet so the onions are not crowded. Heat oil in the pan over medium heat; add the onions and stir yo coat
2. Stir Cook onions, stirring occasionally from the bottom every 5 minutes. Once onions begin to brown, reduce heat. Continue cooking 20-30 minutes, stirring every 2-5 minutes until onions are golden brown, adding more oil if needed.
3. Caramelize When onions reach their desired color, remove from heat to stop cooking. Sprinkle onions with salt, pepper and sugar to enhance flavors if desired.