Slice baked bread into 1-inch slices. Combine sugar and cinnamon in a small bowl. Whisk eggs and then add milk, vanilla and 2 teaspoons of cinnamon sugar mixture. Dip a slice of bread into milk and egg mixture, coating both sides, then place in a sprayed waffle iron. Bake until bread is golden and crispy on the edges. Remove and sprinkle with leftover cinnamon sugar. Serve with syrup.