Okay kiddo, an empire biscuit is a sweet treat that's kind of like a cookie with a hat on top. The biscuit is round and flat, like a pancake, and it's made out of butter, sugar and flour. It's really yummy because it's sweet and crispy and buttery all at the same time.
Now, the hat on top is where things get really cool. It's made out of icing, which is sort of like frosting, and it's shaped like a dome. The dome is usually pink or white and it's really smooth and shiny.
People like to eat empire biscuits as a special treat, especially in Scotland, where they're from. They're usually sold in bakeries and cafes, and some people even make them at home.
So that's an empire biscuit! A yummy cookie with a fancy hat on top that people love to eat for a special treat.