Melt the butter in a saucepan. While melting, you will see it turn foamy and then suddenly turn amber color. Take out from the flame, and add in the honey and vanilla. Mix well.

In a large bowl, combine the remaining ingredients. Add in the browned butter mixture and coat well.

Preheat oven to 180 degrees. Spread the prepared oat mixture on a large tray.

Bake for a total of 30 minutes, taking out every 10 minutes and stirring the mixture.

Allow to cool completely on the tray before transferring into an air tight container.