Butter the bread. Combine sugar and cinnamon in a bowl and stir to combine. Sprinkle the cinnamon/sugar mixture on top of the butter, then pop it in the oven for 10 minutes at 350, then finish it off under the broiler.
Mix cinnamon and sugar. Like two table spoons sugar for every one table spoon cinnamon. Siften butter. Toast bread. Smear on butter and sprinkke on cinnamon and sugar. OR mix the cin/sugar mix into butter first then spread on toast.