Oatmeal Chocolate Chunk Cookie Sandwiches with Peanut Butter Buttercream


For the Cookies:

  • 2 sticks unsalted butter, room temp
  • 1/2 cup granulated sugar
  • 3/4 cups light brown sugar
  • 3 eggs
  • 1 tbsp vanilla
  • 2 cups all purpose flour
  • 3 cups old fashioned oats
  • 1 1/2 Tbsp cinnamon
  • 1 tbsp baking powder
  • 1/2 tsp salt
  • 2 cups chocolate chunks or chips

For the Buttercream:

  • 2 sticks unsalted butter, room temp
  • 2 cups powdered sugar
  • 1 1/4 cup peanut butter
  • 2 tbsp whipping cream
  • 1 tsp vanilla

Cooking Instructions:

  1. Preheat your oven to 350 degrees.
  2. In a large bowl, using a hand mixer, cream the butter, sugar and brown sugar until well combined.
  3. Add in the eggs and vanilla. Continue to mix for a couple minutes until the mixture is light, fluffy and smooth.
  4. In a small bowl stir together the flour, oats, cinnamon, baking powder and salt.
  5. Again using the hand mixer, slowly add the dry ingredients to the wet ingredients. Mix until just combined, do not over mix.
  6. Using a spoon stir in the chocolate chunks until evenly distributed.
  7. Using a small cookie scoop, scoop out the cookie dough onto a parchment lined cookie sheet. Bake for approx 14-16 minutes until the cookies are just lightly golden.
  8. Cool the cookies completely.
  9. Lets make the buttercream while the cookies are cooling. Add all the ingredients (butter, powdered sugar, peanut butter, whipping cream and vanilla) to a large bowl and mix with a hand mixer until smooth, creamy and fluffed up.
  10. Once the cookies are completely cooled you can spoon or pipe the buttercream in-between two cookies.

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