03Spread ½ the batter evenly in the bottom of the pan. Combine the sugar and cinnamon for the cinnamon sugar and sprinkle evenly over the batter.
04Take a small spoon and drop the remaining batter evenly over the cinnamon sugar.
05Bake for about 20 minutes.
06Let cool completely about an hour. With a whisk, mix together the powdered sugar, milk, and vanilla for the glaze. Drizzle over the bars. As the glaze soaks into the bars, they become gooey!