Fold in the sprinkles and place better into the prepared pan. The batter will be thick. Using an spatula press the batter down evenly into the pan and smooth over the top. Add more sprinkles to the top of the batter.
Bake for 18-20 minutes, or until the blondies have puffed up throughout.
Remove from oven and let cool slightly. Remove the blondies from the pan and let cool on a rack.
Cut into 9 portions and enjoy.
Store in the refrigerator or freezer.
You can substitute coconut sugar if you cannot get maple sugar but it will change the color of the blondies and make them darker.