Manna From Heaven
A gift that is usually given unexpectedly to someone for free, that is a big deal to the person receiving. It's mostly used for the sake of food- when God provided food to the Israelites who were starving from there flight from Egypt.
Person One: "AW Person Two! Did you taste those strawberries!?"
Person Two: "No Person One, they any good?"
Person One: "There like manna from heaven!"
Person Two: "No Person One, they any good?"
Person One: "There like manna from heaven!"