system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why is the caramel soft in ice cream bars, but if I were to stick a Snicker's bar in the freezer, the caramel would come out rock hard?
gpt
One is carmel sauce and the other is carmel candy.  When making it, it’s highly dependent on temperature and the amount of fat. Plenty of recipes online if you want to try making it at home. You need a candy thermometer though.