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Maple Oatmeal Sandwich Cookies

Prep Time30 mins
Cook Time30 mins
Resting Time2 hrs
Total Time3 hrs
Course: Breakfast
Cuisine: American
Keyword: maple oatmeal sandwich cookies, oatmeal sandwich cookie recipe, sandwich cookies recipe


For the Maple Oatmeal Cookies:

  • 1 cup (2 sticks) unsalted butter at room temperature
  • 1 1/2 cups brown sugar
  • 1/2 cup maple syrup
  • 1 tsp pure vanilla extract
  • 2 large eggs
  • 1 1/2 cups unbleached all-purpose flour
  • 2 tsp cinnamon
  • 1 tsp salt
  • 1/2 tsp baking soda
  • 3 1/2 cups old fashioned oats

For the Maple Buttercream:

  • 1 cup (2 sticks) unsalted butter at room temperature
  • 4 cups powdered sugar
  • 1 tsp maple extract
  • dash salt
  • 4 tbsp milk


To Make the Cookies:

  • In a large mixing bowl, beat together the butter and brown sugar with an electric mixer until well combined, about 2 minutes.
  • Add the maple syrup and vanilla extract and beat to combine.  Scrape down the sides of the bowl as needed.
  • Add the eggs, one at a time, beating until combined.
  • Add the flour, cinnamon, salt, and baking soda, and beat until combined, scraping down teh sides of the bowl as needed.
  • Add the oats and mix until well combined.
  • Cover the bowl with plastic wrap and refrigerate for at least 2 hours, or overnight.
  • Preheat the oven to 350 degrees F.
  • Line 2 baking sheets with parchment paper.
  • Drop ~2 tablespoons of dough onto the prepared baking sheets, and bake until golden, about 14-16 minutes. 
  • Let cool for about 5 minutes and then transfer to a wire rack to cool completely. 

To Make the Maple Buttercream:

  • In a large bowl, beat together the butter and powdered sugar until combined. 
  • Add the maple extract and a dash of salt, and beat until combined.
  • Add the milk, one tablespoon at a time until desired consistency is met.
  • Spread ~2-3 tablespoons of buttercream on ½ of the oatmeal cookies and then top with another cookie.
  • Store in an airtight container for 3-5 days.  Enjoy!