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Iced Oatmeal Shortbread Cookies

Buttery and crisp, these Iced Oatmeal Shortbread Cookies are an easy slice and bake version that will taste just like the ones you had growing up.

If you’re looking for more oatmeal cookie recipes, check out some of my other favorites like my Chewy Oatmeal Raisin Cookies, Oatmeal Coconut Blueberry Chocolate Chip Cookies, or my Oatmeal Cashew Butter Chocolate Chip Cookies.

iced oatmeal shortbread cookies

Why You'll Love This Recipe

You will love these Iced Oatmeal Shortbread Cookies because they are buttery, crisp, lightly spiced, full of oats, and covered in a thin, sweet glaze. These taste just like the ones my mom bought growing up!

I usually prefer soft and chewy cookies to crispy ones, but when they are shortbread it’s a whole different ball game. My mom loved Iced Oatmeal Cookies in the plastic package and pull-out tray, I don’t even remember the name of them. But they were crisp and they were the only buttery, crisp cookies I ever remember eating as a child.

These taste just like them, but they are an easy slice and bake version. I love making slice and bake cookies because they are so easy! They also make a perfectly round cookie with such ease, which is something I love as I despise cutting out cookies with cutters!

iced oatmeal shortbread cookies

Ingredients for Iced Oatmeal Shortbread Cookies

Organic Valley Salted Butter

Homemade Organic Light Brown Sugar

Florida Crystals Organic Powdered Sugar

Cairnspring Mills Organic All Purpose Flour

Frontier Co-Op Organic Korintje Cinnamon

Frontier Co-Op Organic Nutmeg

Organic Rolled Oats

iced oatmeal shortbread cookies

Why Organic

Why use organic ingredients in this recipe? You all know I’m a huge organic advocate, and I bet you may be thinking sometimes, Why would I even bother to use organic ingredients in something that is so sweet and indulgent? But, that is the exact reason why you should use organic ingredients! Sweet things need to have flavor in order to be good, otherwise they are just sweet and they don’t taste like much else. Organic ingredients are more pure than conventional ones, therefore they actually have more flavor than the non organic options. Say it with me, organic means more flavor! And not just more flavor but a more true and pure flavor. And organic ingredients are much healthier for you to eat in general as they do not contain GMOs or anything artificial. Plus, you are being environmentally friendly when you choose organic ingredients!

So, I highly recommend that you buy the best organic ingredients for this recipe! You can also shop my Amazon Storefront for all my favorite organic ingredients here. Tip – hover over each ingredient to see the name. And if you want to learn more about organic foods and the difference, read my post here on Food Labels and What They Mean.

iced oatmeal shortbread cookies

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Iced Oatmeal Shortbread Cookies

Recipe by MimiDifficulty: Easy



Buttery, with a hint of cinnamon, and a sweet glaze on top. These Iced Oatmeal Shortbread Cookies are slice and bake cookies that are incredibly easy!


  • Dough
  • 113 grams organic salted butter, softened

  • 57 grams organic light brown sugar

  • 1 teaspoon organic vanilla extract

  • 127 grams (1 cup) organic all purpose flour

  • 43 grams (1/4 cup plus 3 tablespoons) organic rolled oats

  • 1/2 teaspoon organic cinnamon

  • 1/8 teaspoon organic nutmeg

  • Icing
  • 71 grams organic powdered sugar

  • 1 to 2 tablespoons water


  • To make the dough: In the bowl of a stand mixer fitted with the paddle attachment, add the butter, light brown sugar, and vanilla extract. Mix on low until combined and there are no butter chunks.
  • Add the flour, oats, cinnamon, and nutmeg and mix on low until combined.
  • Turn the dough out onto a large piece of plastic wrap and roll into a log that is about 7-inches long. Cover the log with plastic wrap and store in the fridge for at least 4 hours or overnight.
  • Preheat the oven to 350°F. Line two baking sheets with parchment paper.
  • Remove the cookie log from the fridge and cut into 1/4-inch slices and place on the prepared baking sheets.
  • Bake for 22 to 24 minutes, or until golden brown. Allow to cool completely on the baking sheets.
  • To make the glaze: In a small bowl, add the powdered sugar and water and whisk to combine completely. The glaze should be runny so it just coats the cookies.
  • Dip the tops of each cookie into the glaze and place back on the parchment paper to set. (Stick the baking sheet in the freezer to speed up the process!)
  • Store in a cool dry place (or in the fridge) for up to 5 days.


  • High Altitude — Bake for 20 to 22 minutes or until golden brown.

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Make sure to check out my Chewy Oatmeal Raisin Cookies recipe, which I'm sure you'll love too! And, share it with someone who you think will like it too!

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