|Prep time: 5 minutes||Cooking time: 15 minutes||Total time: 20 minutes|
1. Heat oil in a wide bottomed skillet or pan over medium-high heat.
2. Add chopped or sliced onion and cook, stirring frequently, until desired softness and color are reached. Reduce the heat as needed to prevent burning.
3. Refrigerate leftovers within 2 hours.