Preheat oven to 350 degrees. Line a baking sheet with parchment paper.
Whisk or sift together flour, baking soda, baking powder and salt in a large bowl, set aside.
In a large mixing bowl or stand mixer fitted with a paddle attachment, cream together butter and sugar. When blended, add egg and applesauce. Continue to mix in oats and then slowly add dry ingredients until oatmeal cookie dough is formed.
Drop 1-2 tablespoons of oatmeal cookie dough approximately 2 inches apart on the cookie sheet. Bake for 13-14 minutes or until oatmeal cookies are just barely light brown and set. Remove and allow to cool.
Combine powdered sugar and real maple syrup in a small bowl to make maple glaze. Whisk until there are no lumps. If mixture is too thick, add additional water until it can easily be drizzled.
Drizzle each oatmeal cookie with maple glaze and allow to set. Serve with a big glass of milk or vanilla ice cream.
If you've tried this recipe, come back and let us know how it was!