Oatmeal Buttercream Pies

Directions

1. 1
   For the Oatmeal Cookies: Preheat oven to 350 degrees F. Line 2 large cookie sheets with parchment paper.In a large bowl, or the bowl of a stand mixer fitted with the paddle attachment, beat butter and sugars until well combined, 3-5 minutes.
2. 2
   Add egg and vanilla; mix until light and fluffy, about 2 minutes.
3. 3
   Add flour, baking soda, salt and cinnamon to butter mixture.
4. 4
   Mix on low speed, just until flour disappears. Stir in quick oats until just combined.Use a small cookie scoop to portion cookie dough onto prepared sheets. Space about 1 1/2 inches apart.
5. 5
   Bake for 7 to 9 minutes, until edges start to turn golden brown.
6. 6
   Remove cookies from oven and let sit for 3 minutes.
7. 7
   Place cookies on a wire rack to cool completely before frosting.For the Buttercream Frosting: In a large mixing bowl, beat all ingredients on medium speed until smooth and creamy, 2-3 minutes.Once cookies have cooled completely, sandwich frosting between two cookies.Enjoy!