Preheat oven to 350°
Prepare a loaf pan (mine is 10x5, 8.5x4.5 will work too) with a baking spray or grease and flour pan.
In a large mixing bowl add pancake mix, water, egg, butter, cinnamon, maple extract and whisk until the batter is well mixed. It may have a few small lumps, but otherwise well combined.
Pour the batter into the prepared pan.
In a small bowl mix the topping: flour, cinnamon, sugar, brown sugar and butter with a fork, and spread it over the batter in the pan.
Bake at 350° for 35-40 minutes, or until a toothpick comes out clean.
Allow the loaf to cool for 10 minutes, then turn out onto a cooling rack, or alternatively you can slice it and serve it out of the loaf pan. If you do cut it in the pan using a plastic knife so you don't scratch the pan.