Homemade Oatmeal Cream Pies

READY IN: 48mins




  • Preheat oven to 350 degrees.
  • Grease a cookie sheet, set aside.
  • In a small bowl, combine flour, baking soda, salt, and baking powder; set aside.
  • In a large bowl, beat butter and peanut butter with an electric mixer on medium speed until combined.
  • Beat in granulated sugar and brown sugar until fluffy.
  • Beat in egg and vanilla.
  • Using a wooden spoon, stir in the flour mixture and oats just until combined.
  • Drop dough by rounded teaspoons 2 inches apart on prepared cookie sheet.
  • Bake 8-10 minutes or until edges are light brown and centers are set.
  • Cool on cookie sheet for a few minutes, then transfer them to a wire rack.
  • In a medium bowl combine the hot water and the salt, stirring until salt dissolves.
  • Add marshmallow creme, shortening, and powdered sugar.
  • Beat with an electric mixer on medium speed until combined.
  • Spread marshmallow mixture on the bottom sides of half the cookies. Top with the remaining cookies, bottom sides down, to make cookie sandwiches.