Aguapanela is unrefined cane sugar dissolved in water: two ingredients and fifteen minutes. It is the everyday drink of Colombia, taken hot at breakfast, cold with lime in the heat, or hot with a piece of fresh cheese dropped into the cup. Makes eight servings.
The proportion is a starting point, not a rule: Colombians adjust it by taste. If it comes out too weak, add more panela; too sweet, add water. Either way, return it to the heat until it dissolves again. For guandolo, dissolve the panela in cold water instead and add lime juice.