I have reviewed 15 peanut butter whiskey’s and only 2 make a point of saying they are made with no real peanuts and as such they are safe for people with peanut allergies. Those two are Ugly Dog and Porters Peanut Butter Whiskey. The general term natural flavors which all like to include in their list of ingredients may mean real peanut flavor or may not. To be safe I would recommend going with a peanut butter flavored whiskey that makes a point of saying no real peanuts are used.