Oatmeal Creme Pies

• Cookies:
• 1 1/4 cups all-purpose flour
• 1 1/2 cups old-fashioned oats
• 1/2 teaspoon baking soda
• 1/2 teaspoon salt
• 1/2 teaspoon ground cinnamon
• 1/2 cup (8 tablespoons) unsalted butter, at room temperature
• 3/4 cup packed light brown sugar
• 1 large egg, at room temperature
• 1 teaspoon vanilla extract
• Filling:
• 1/2 cup (8 tablespoons) unsalted butter, at room temperature
• 1 7-oz container marshmallow creme
• 2 cups confectioners' sugar
• 1 teaspoon vanilla extract

1. Preheat oven to 375 F. Line a baking sheet with parchment paper.
2. In a medium bowl, whisk the flour, oats, baking soda, salt and cinnamon together. In the bowl of a stand mixer fitted with the paddle attachment, cream the butter and brown sugar on medium speed until light and fluffy, about 4-5 minutes. Add the egg and vanilla and beat to combine. Add the dry ingredients to the mixer in 3 additions, beat just until combined.
3. Use a small cookie scoop to portion the dough into approximately 1 tablespoon balls. Place them on the prepared baking sheet, leaving about 1 1/2-2 inches between them. Bake for 9-10 minute, or until the edges of the cookies are golden brown and set (the middles may still seem a little underdone - they'll set up as they cool). Transfer the baking sheet to a wire rack and let the cookies cool for a few minutes then remove them to the rack to cool completely.
4. To make the filling: In the bowl of a stand mixer fitted with the paddle attachment, beat the butter and marshmallow creme on medium speed until smooth and fluffy, about 3 minutes. Add the confectioners' sugar in 2 additions then add the vanilla and continue beating until the filling is smooth and thick.
5. Match the cookies in pairs by size. Transfer the filling to a piping bag and pipe about 1 tablespoon onto the flat side of one cookie of each pair. Sandwich the cookies together, and press the filling to the edges.

cookies, flour, oldfashioned oats, baking soda, salt, ground cinnamon, unsalted butter, brown sugar, egg, vanilla, filling, unsalted butter, marshmallow creme, sugar, vanilla

Taken from www.epicurious.com/recipes/member/views/oatmeal-creme-pies-50181741 (may not work)