Preheat oven to 200 degrees F

Melt one stick of butter on a large non stick baking sheet with sides. Sheet needs to be large enough for nuts to be in a single layer

Beat egg whites till stiff peaks form

Fold in brown sugar

Gently fold in nuts till coated.

Spread in single layer on baking sheet.

Every 15 minutes, flip nuts over. Repeat for 60 to 75 minutes, turning every 15 minutes. Butter will eventually absorb and nuts will be coated.

Allow to cool fully before putting in an airtight container.