Step 1 Prepare the Onions: Start by peeling the onions. Cut off the root and stem ends, then slice the onions in half from root to tip. Lay each half flat on your cutting board and slice thinly.

Step 2 Heat an outdoor Griddle: Set your griddle over medium heat and add the olive oil or butter.

Step 3 Add the Onions: Once the oil or butter is hot, add the sliced onions to the pan. Stir them to coat evenly with the fat. Sprinkle a pinch of salt over the onions.

Step 4 Cook Low and Slow: The key to perfect caramelized onions is patience. Lower the heat to medium-low or even low, depending on your stove. Stir the onions every few minutes to ensure they cook evenly and don’t stick to the pan. The entire process can take anywhere from 30 to 60 minutes.

Monitor and Adjust: As the onions cook, they'll release moisture and gradually turn from white to golden brown.