Caramel apples have long been a Halloween staple ... then reduce heat to medium. Cook until a candy thermometer reads 248°F (120°C), stirring constantly to prevent burning for about 25-30 ...
Quarter, peel and remove core from apples and slice each quarter in half. Heat the butter and sugar in a pan and add the apples. Cook for about 5 minutes to caramelize then add the cinnamon.