Preheat oven to 350. Spread nuts in an even layer on baking sheet and bake for 10 minutes. Meanwhile, melt the butter and in medium sized bowl, combine the butter, cayenne, brown sugar, and rosemary. Immediately when removing nuts from the oven, scoop into the bowl with the butter ingredients and stir well to toss and distribute the butter mixture evenly. Serve immediately with a cold beverage of your choice.
Recipe by Five Wooden Spoons at https://www.fivewoodenspoons.com/2013/01/28/beer-nuts/