Place the bread on a cookie sheet and put it under the broiler. Toast it on one side until golden brown (just a couple of minutes).
Remove the bread from the oven and turn it over. Spread each slice of bread with butter. Sprinkle each slice of bread with a tablespoon of sugar. Then give each slice a good dose of cinnamon.
Return the bread to the oven and broil until bubbly and golden brown on the edges (3 to 5 minutes). Take it out of the oven and set it on the stove to cool.