Preheat oven to 300degreesF and prepare baking sheet. I like to line a jelly roll pan with parchment paper, but you can grease your pan if you like. Combine brown sugar, cinnamon and cayenne, set aside. In a bowl large enough to accommodate nuts, whisk the egg white; add nuts, cranberries, sprinkle with sugar mixture and toss to coat. Spread onto prepared baking sheet. Bake for 18-20 minutes or until golden brown, stirring once. Cool completely. Store in an airtight container up to a week.