The ideal gift! Buy the best flavored whiskey online. Price and reviews available for Bird Dog Bird Dog Peanut Butter Whiskey Flavored – 750ml Bottle. Bird Dog Peanut Butter Flavored Whiskey is crafted from an aged Kentucky Bourbon Whiskey and rich peanut butter flavors. The taste is a balance between bourbon undertones and creamy peanut butter, sweet vanilla and caramel. At 80 proof, Bird Dog Peanut Butter has a smooth, warm finish.