Preheat oven to 350 degrees. Place slices of bread on cookie sheet and spread with softened butter. Use as much or as little as you want but make sure to cover the entire slice evenly. Sprinkle about a tablespoon of cinnamon sugar over each slice evenly. Bake for 14-15 minutes until bread is lightly toasted. Enjoy warm with a cup of coffee or a side of salty bacon!
NOTE: We sometimes use salted butter, because I like the saltiness with the sweet, but use whatever you have on hand. I've tried margarine and it works fine, but you don't get the crunchiness of the sugar like you do with butter.
I've made this in the toaster oven and it works well too, but check them at about 12 minutes, because they tend to cook faster than a conventional oven.
For the cinnamon sugar, add as much cinnamon to the sugar as you like. You can also buy premixed cinnamon sugar in a shaker can at the grocery store in the baking aisle. I've also made this with brown sugar mixed in and it's good too. It gives it a more caramel-ly flavor.