butterscotch
noun /ˈbʌtəskɒtʃ/
  /ˈbʌtərskɑːtʃ/
 [uncountable]- a type of hard pale brown sweet made by boiling butter and brown sugar togetherTopics Foodc2
 - (especially North American English) a sweet sauce made with butterscotch, used for pouring on ice cream, etc.