Preheat oven to 350 Shell hazelnuts. Roast nuts on a baking sheet for 10 to 15 minutes and remove from oven. Allow to cool to room temp. Coarsely chop nuts and place in a large glass container.
Bruise Angelica root with a morter and pestle, and add to container. Add vodka. Cap tightly and put in a dark place for 1 month. Shake occasionally.
Pour mix through cheesecloth to remove all particles. After straining and filtering, measure the volume of the alcohol mixture. It should be 28 oz. If volume is less, add more vodka to make up the difference.