A very sweet tradition, gækkebreve are “snowdrop letters” made by Danish children during the weeks before Easter. They are often intricately written on paper snowflakes with a puzzle to help the recipient figure out who the writer is.
Conventionally, each letter is given with a snowdrop – the first flower of the year. Friends and family guess who the letter is from, and if they can’t, the writer is owed a chocolate egg. If they do guess, the recipient gets a chocolate egg for their efforts!