White Rice with Unknown Grain

Hi everyone

Every so often at a Korean restaurant, I get served a bowl of rice where it's about 95% white rice and 5% some mysterious grain that makes the entire bowl taste super nutty and delicious.

This is the only picture that I could find that vaguely resembles what I'm thinking of

Does anyone know what this mysterious grain is?!

https://preview.redd.it/8yaga8u5m5ig1.png?width=665&format=png&auto=webp&s=156792df51117f12b63e81ceabaf8c9d92a59ba1