There are a few ways to clean caramelized sugar from a pan. The most common way is to use a non-stick pan and heat the sugar until it starts to turn light brown. Once the sugar has started to turn light brown, use a spoon or your hands to remove the caramelized sugar from the pan. Another way is to place the pan in a oven on medium-high heat and cook until the sugar has melted and bubbled. Finally, you can use a spoon or your hands to stir the sugar until it’s smooth.