Pour 1/2 cup of the sugar into a small pot; place over medium heat; without moving it too much. Keep an eye on it so it doesn’t burn. Once it melts, remove from heat so that it doesn’t get too dark; if it does, it will taste bitter. Quickly pour into mold you will use for the flan. Distribute caramel evenly until it coats the bottom and sides. Be very careful so you don’t get burned.