Sprinkle unflavoured gelatine over 1/4 cup of cold water, let stand for 1 minute. Add 1/4 cup boiled water and stir until granules are dissolved. Add sweetened condensed milk and stir until smooth, then divide between glasses. Refrigerate 1 hour or until almost set.
(Nutrition information provided is an estimate and will vary based on cooking methods and brands of ingredients used.)