• Preheat oven to 350 degrees F. Line a baking sheet with parchment paper.
• In a mixing bowl, add in the butter, brown sugar and granulated sugar. Beat until light and fluffy (about 2 minutes). Scrape down the sides.
• Add in the egg and maple extract. Beat on medium until incorporated. Scrape down the sides of the bowl.
• Add in the old fashioned oats and beat until combined.
• Add in the flour, baking powder and salt. Mix until combined.
• Scoop out cookies using a large 2 tablespoon cookie scoop and place on prepared pan. Press the cookies down so they're no longer domed.
• Place in the preheated oven and let them bake for 10 to 11 minutes until the edges are golden brown.
• Let the cookies cool for 10 minutes before moving them to the cooling rack.
• Once the cookies are completely cooled, add the frosting to a piping back and cut off a corner. Pipe a nice large mound and add the top cookie to the oatmeal maple cream pie.

Frosting

• Add the butter, maple extract and creamer to a large mixing bowl. Mix with a hand mixer until incorporated.
• Add the powdered sugar and mix on low until almost completely incorporated. Turn the mixer on high and beat for another 2 - 3 minutes until the frosting becomes light in color and texture.