Caramelized Onion Purée

• ¼ cup (60 ml) extra-virgin olive oil
• 12 cups (1.3

Heat the oil in a thick, wide-bottomed stainless-steel pan set over medium heat. Add the onions and salt and cook, stirring occasionally with a wooden spoon (about every 10 or 15 minutes), as the liquid from the onions is released and evaporated. When the onions start taking on some golden-brown color, after about 40 minutes, reduce the temperature to medium-low then continue to stir with a woo