"Salty-sweet peanut butter cookies, chewy with a bit of crunch from the oats, and filled with fluffy vanilla buttercream."
Peanut Butter Oatmeal Cream Cookies
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- Recipe Card
Prep time 10mins
Cook time 8mins
Serves or Makes: 12 sandwiches
Recipe Card
For the Cookies
ingredients
- 3/4 cup creamy peanut butter, (not all-natural)
- 1/2 cup unsalted butter, at room temperature
- 1/2 cup lightly packed light brown sugar
- 3/4 cup granulated sugar, divided
- 1 large egg
- 1 teaspoon vanilla extract
- 1 1/4 cups all-purpose flour
- 1/2 cup old-fashioned oats
- 1/2 teaspoon baking soda
- 1/2 teaspoon kosher salt
- 1 teaspoon ground cinnamon
To Make the Cookies
Method
Step 1
In the bowl of your stand mixer fitted with the paddle attachment, beat the peanut butter, butter, brown sugar and 1/2 cup white sugar for about five minutes until light and fluffy. Scrape the bowl down and beat in the egg and vanilla.
Step 2
In a separate bowl, combine the flour, oats, baking soda, salt and cinnamon. With the mixer on low, add the dry ingredients by spoonfuls, mixing just until moistened. Dough will be thick, and if needed, use your hands to finish bringing the dough together. Chill for several hours.
Step 3
Preheat the oven to 375ºF. Roll the dough into 2 dozen balls, coat them in the remaining 1/4 cup granulated sugar and place on a parchment lined baking sheet. Flatten the cookies with the back of a fork, and sprinkle with a little more salt. Bake for 7 1/2 - 8 minutes, until pale golden. Cool for several minutes on the baking sheet, then carefully transfer to a wire rack and cool completely.
For the Filling
ingredients
- 1/2 cup unsalted butter, at room temperature
- 1 cup powdered sugar
- 1/2 teaspoon vanilla extract
To Make the Filling
Step 1
With an electric mixer (hand-held is fine), beat the filling ingredients for several minutes until very light and fluffy. You can fill a piping bag with the frosting to pipe it onto the cookies, or just spread it on with a small icing spatula.
Step 2
Pair up the cookies by size. Spread or pipe the frosting onto the bottom of one cookie, then top with a second cookie to make a sandwich.
Step 3
Store leftovers in an airtight container.