Maybe it's just that I buy the cheap cinnamon, but I find doubling the amount of cinnamon a recipe calls for is usually the first thing I change.
And even then, my wife's comment on something is often: needs more cinnamon.
Maybe it is just our taste buds getting old?
I ran across this YouTube video yesterday, both of us thought it looked tempting; fan tan rolls would not be quite as peelable, but might be easier to make:
Pastry Butter Bread