01 -
Cut the onions into ¼ inch rounds, discarding the root and skin. Separate the rings and set aside.
02 -
Place a large skillet over medium heat. Once hot, add the olive oil, onions, salt, and pepper, stir to coat the onions in the oil and seasonings.
03 -
Cook, stirring occasionally for 15 minutes until the onions are translucent and starting to soften.
04 -
Add the Coca-Cola to the skillet and stir to combine.
05 -
Continue to cook until caramelized, browned, soft, and almost all of the liquid is cooked out, about 15-20 minutes.
06 -
Use immediately as a topping for burgers, sandwiches, or other dishes, or let cool and store for later use.