Preheat oven to 350°F. Line a baking sheet with parchment paper, set aside.

In a medium bowl, whisk together flour, baking soda and salt. Set aside.

In a large bowl, beat butter, vegetable oil and sugar until well combined. Mix in egg, vanilla extract and maple extract.

Add flour mixture 1 cup at a time, mixing until completely combined.

Roll 2 tablespoons of dough into balls and place on prepared baking sheet, leaving room for spreading. Lightly flatten dough balls with bottom of a cup into a disk shape.

Bake for 8-10 minutes, just until edges are set and cookies are just starting to turn golden. Remove from oven and allow to cool for 15 minutes on baking pan. Transfer to a cooling rack.

For icing: In a small bowl, whisk together powdered sugar, maple syrup, water, vanilla extract, and maple extract until smooth.

Using a spoon, smooth icing onto top of each cookie. Quickly sprinkle with sprinkles if desired and let set for 10 minutes, or until hardened.