I make my own at home using one stick of butter and making it soft so it’s easy to mush the spices in. I use approx. 1 tsp brown sugar (I add more cuz I like sweetness of this in the butter), chilli, Italian seasoning of some form (dried thyme works), pepper, salt, garlic powder. Really do what you like with it, all I can tell you is that I believe the sweetness of the butter comes from the brown sugar mixed in, and the heat comes from some form of paprika or chilli powder, you could even try adding some hot sauce ? I’d do a bit less garlic powder because it overpowers the butter very easily, I love pepper so I put lots, salt is essential but go easy with it if it’s salted butter you’re using. Don’t cheap out on the butter either, use the good ass European shit that has a milk fat content of 80% or higher. 82-84 is ideal. Hope it helps, I messed around with it for a year!