A good substitute for cinnamon schnapps is Fireball Whiskey. This whiskey has a strong cinnamon flavor and aroma, but it is slightly sweeter than traditional schnapps. Fireball whiskey is made from Canadian whisky blended with natural cinnamon flavors to give it its signature taste. The whiskey has notes of caramel, vanilla, and other spices that add complexity and depth to the flavor. It has a soft finish that is excellent for cocktails or enjoyed on its own. It can be served raw, on the rocks, or in creative cocktails like an Irish Mule or Hot Apple Pie.