The phrase "cream layer" refers to the top or highest-ranking group of people in a society or organization. It suggests that these individuals are more privileged, successful, or influential compared to others. Full definition
Spread this over the ice cream layer with a spatula and freeze for 10 minutes. (thefoodieteen.com)
Anything with meat, cheese and pasta is usually a winner in my book, but the sour cream layer in this dish added a tangy twist that I really liked. (emilybites.com)