It’s always helpful to have some cinnamon-sugar mixture on hand. In the past, I’ve just poured a little of each into a spice jar. But I think the sugar ratio is supposed to be quite a bit more than the cinnamon. Now I do about a 4:1 ratio of sugar to cinnamon.
My favorite way to use cinnamon-sugar is as a treat on a buttered piece of toast. We’ve also used it when making homemade churros. It can be sprinkled on fruit or French toast or sprinkled on top of cookies or popcorn or muffins or nuts. Yum!