Oatmeal Peanut Butter Sandwich Cookies

Everyone needs a solid peanut butter cookie recipe in their baking arsenal and this is my favourite. The inspiration for these sandwich cookies are those delicious-looking Little Debbie Oatmeal Creme Pies my mom would never let us get at the grocery store when we were kids. We weren’t allowed to have Kool-Aid either. To create these cookies, I took my oatmeal cookie recipe and rejigged it to include peanut butter. The result is a dense, chewy cookie that’s packed with peanut butter flavour. These cookies taste great on their own; but if you want to get fancy, you can turn them into sandwich cookies stuffed with a creamy peanut butter filling.


  • 1 1/4 cups all-purpose flour
  • 1/2 tsp baking powder
  • 1 tsp baking soda
  • 1 cup light brown sugar
  • 1/2 cup butter, softened
  • 2 eggs
  • 1 tsp vanilla extract
  • 3/4 cup smooth peanut butter
  • 1 1/4 cups oats


  • 1/4 cup butter, softened
  • 1/2 cup smooth peanut butter
  • 1 1/2 cups powdered sugar


  1. Preheat oven to 350F and spray baking sheet with nonstick cooking spray.
  2. In a bowl, stir together the flour, baking powder and soda.
  3. Using an electric mixer fitted with the paddle attachment, cream butter and sugar until light and fluffy.
  4. Add eggs, vanilla and peanut butter. Mix until fully combined.
  5. Reduce mixer speed to low and slowly add in the flour mixture.
  6. Add in the oats and mix until fully incoprorated.
  7. Use an ice cream scoop to shape dough into equal sized balls and place on prepared cookie sheet.
  8. Bake for 15 minutes. Cool cookies completely before adding filling.
  9. For the filling: Using an electric mixer fitted with the paddle attachment, whip the butter and peanut butter until light and fluffy.  This should take about 5 minutes.
  10. Reduce mixer speed to low and slowly add in the powdered sugar. Mix until fully incorporated and smooth.
  11. Using an offset spatula, spread about 2 tbsps filling onto a cookie and top with a second cookie.

*Yield: 10 sandwich cookies or 20 cookies