Dulce de Leche Recipe

Fill the bottom of a double boiler halfway with water. Bring to a boil, then reduce heat to medium for an active simmer. Pour a 14-oz. can of sweetened condensed milk in the top of the double boiler and set it over the simmering water. Don't cover. Every 45 minutes, check the water level and give the milk a stir. Replentish the simmering water with hot water as needed. When the milk is as thick as pudding and is a rich, dark caramel color, 2 1/2 to 2 hours, remove from heat, cool thoroughly, cover, and refrigerate or use immediately.