Easy Oatmeal Sandwich Cookies Recipe: Soft, Chewy & Creamy!

Oatmeal sandwich cookies recipe
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If you’re searching for a delicious treat that’s both nostalgic and satisfying, Oatmeal Sandwich Cookies are the perfect choice. These cookies combine the heartiness of oats with a sweet, creamy filling, creating a dessert that appeals to both kids and adults.

Whether you love classic oatmeal cookies or are looking for a new twist, this recipe will become a favorite in your kitchen.

Why You’ll Love Oatmeal Sandwich Cookies

Oatmeal Sandwich Cookies are a delightful combination of chewy oatmeal cookies and a velvety cream filling. They are easy to prepare, customizable, and ideal for lunchboxes, parties, or a cozy afternoon snack. The texture of the oats pairs perfectly with the rich filling, making every bite satisfying.

Key Features

  • Chewy and Soft: Thanks to rolled oats, these cookies are soft yet hold their shape.
  • Creamy Filling: The sweet vanilla buttercream filling adds a layer of richness.
  • Customizable: Add raisins, chocolate chips, or nuts for a personal touch.
  • Great for Make-Ahead: Store well and taste even better the next day.

Ingredients for Oatmeal Sandwich Cookies

Oatmeal sandwich cookies ingredients

Before you start, gather these pantry staples and a few baking essentials:

For the Oatmeal Cookies

  • 1 cup unsalted butter, softened
  • 1 cup light brown sugar, packed
  • 1/2 cup granulated sugar
  • 2 large eggs
  • 1 teaspoon vanilla extract
  • 1 1/2 cups all-purpose flour
  • 1/2 teaspoon baking soda
  • 1/2 teaspoon baking powder
  • 1/2 teaspoon salt
  • 2 1/2 cups old-fashioned rolled oats
  • Optional: 1 cup raisins, chocolate chips, or chopped nuts

For the Creamy Filling

  • 1/2 cup unsalted butter, softened
  • 1 1/2 cups powdered sugar
  • 1 tablespoon milk
  • 1 teaspoon vanilla extract
  • Pinch of salt

How to Make Oatmeal Sandwich Cookies

  1. In a large mixing bowl, cream together the butter, brown sugar, and granulated sugar until light and fluffy. Use a hand mixer or stand mixer for best results.
  2. Add the eggs one at a time, beating well after each addition. Mix in the vanilla extract.
  3. In a separate bowl, whisk together flour, baking soda, baking powder, and salt.
  4. Gradually add the dry ingredients to the wet mixture. Mix until just combined.
  5. Fold in the rolled oats and any optional mix-ins like raisins or chocolate chips.

Step 2: Bake the Cookies

  1. Preheat your oven to 350°F (175°C). Line baking sheets with parchment paper.
  2. Scoop tablespoons of dough onto the prepared baking sheets, spacing them about 2 inches apart.
  3. Gently flatten each mound with the back of a spoon or your fingers to help them bake evenly.
  4. Bake for 10 to 12 minutes, or until the edges are golden brown and the centers are just set.
  5. Let the cookies cool on the baking sheet for a few minutes, then transfer to a wire rack to cool completely.

Step 3: Make the Creamy Filling

  1. In a medium bowl, beat butter until smooth.
  2. Gradually add powdered sugar, beating until the mixture is fluffy.
  3. Mix in the milk, vanilla extract, and a pinch of salt. If the filling is too thick, add a bit more milk. If it’s too thin, add more powdered sugar.

Step 4: Assemble the Sandwich Cookies

  1. Once the cookies are completely cool, pair them up by size.
  2. Spread or pipe a generous tablespoon of filling onto the flat side of one cookie.
  3. Top with another cookie, pressing gently to create a sandwich.
  4. Repeat until all cookies are filled.

Tips for the Best Oatmeal Sandwich Cookies

  • Use old-fashioned rolled oats for the best chewy texture. Quick oats will make the cookies softer and less hearty.
  • Let cookies cool completely before filling to avoid melting the cream.
  • For perfectly round cookies, use a cookie scoop.
  • Store assembled cookies in an airtight container at room temperature for up to 3 days, or refrigerate for up to a week.
Oatmeal sandwich cookies served

Variations to Try

Oatmeal Cream Pie Cookies

For a nostalgic treat, make your filling extra fluffy and sweet, just like the classic oatmeal cream pies from childhood lunchboxes.

Chocolate Oatmeal Sandwich Cookies

Swap vanilla extract for cocoa powder in the filling or add mini chocolate chips to the cookie dough for a chocolatey twist.

Vegan Oatmeal Sandwich Cookies

Replace butter with vegan margarine and use a dairy-free milk alternative in the filling. Use a flax egg (1 tbsp ground flaxseed + 3 tbsp water) to replace each egg in the cookies.

Gluten-Free Option

Use a 1:1 gluten-free all-purpose flour blend and certified gluten-free oats for delicious gluten-free oatmeal sandwich cookies.

Serving Suggestions

Enjoy these cookies with a glass of cold milk, a cup of coffee, or your favorite tea. They are perfect for lunchboxes, holiday cookie exchanges, or as a homemade gift.

Common Mistakes and How to Avoid Them

  • Overbaking: Watch your cookies closely. They should look slightly underdone in the center when you remove them from the oven.
  • Filling Too Runny: Add more powdered sugar if your filling is too soft.
  • Cookies Too Crisp: For softer cookies, bake a little less or store them with a slice of bread to help them maintain moisture.

FAQs

Can I freeze oatmeal sandwich cookies?

Yes, you can freeze both the cookies and the assembled sandwich cookies. To freeze the cookies, let them cool completely, then store in an airtight container for up to 2 months. For assembled cookies, wrap each in plastic wrap and place in a freezer-safe container.

How do I keep the filling from oozing out?

Make sure the cookies are completely cool before assembling. If you want a thicker filling, refrigerate it for 15 minutes before spreading.

Can I use quick oats instead of rolled oats?

Quick oats can be used, but the texture will be softer and less chewy. For the best results, stick with old-fashioned rolled oats.

What other fillings can I use?

You can use chocolate ganache, peanut butter frosting, or even marshmallow fluff for a fun twist.

Are oatmeal sandwich cookies healthy?

While oats add some fiber and nutrients, these cookies are still a treat and should be enjoyed in moderation.

Oatmeal sandwich cookies recipe

Oatmeal Sandwich Cookies

Yield: 18
Prep Time: 20 minutes
Cook Time: 12 minutes
Additional Time: 30 minutes
Total Time: 1 hour 2 minutes

These chewy oatmeal cookies are paired with a rich vanilla buttercream filling, creating the perfect nostalgic dessert. Ideal for lunchboxes, parties, or cozy afternoons.

Ingredients

For the Oatmeal Cookies:

  • 1 cup unsalted butter, softened
  • 1 cup light brown sugar, packed
  • 1/2 cup granulated sugar
  • 2 large eggs
  • 1 teaspoon vanilla extract
  • 1 1/2 cups all-purpose flour
  • 1/2 teaspoon baking soda
  • 1/2 teaspoon baking powder
  • 1/2 teaspoon salt
  • 2 1/2 cups old-fashioned rolled oats
  • Optional: 1 cup raisins, chocolate chips, or chopped nuts

For the Creamy Filling:

  • 1/2 cup unsalted butter, softened
  • 1 1/2 cups powdered sugar
  • 1 tablespoon milk
  • 1 teaspoon vanilla extract
  • Pinch of salt

Instructions

  1. In a large mixing bowl, cream together butter, brown sugar, and granulated sugar until light and fluffy.
  2. Add eggs one at a time, beating well after each addition. Mix in the vanilla extract.
  3. In a separate bowl, whisk together flour, baking soda, baking powder, and salt.
  4. Gradually add the dry ingredients to the wet mixture and mix until just combined.
  5. Fold in rolled oats and any optional mix-ins such as raisins, chocolate chips, or nuts.
  6. Preheat oven to 350°F (175°C) and line baking sheets with parchment paper.
  7. Scoop tablespoons of dough onto prepared baking sheets, spacing them 2 inches apart.
  8. Gently flatten each mound with the back of a spoon or your fingers.
  9. Bake for 10 to 12 minutes or until the edges are golden brown and centers are just set.
  10. Let cookies cool on the baking sheet for a few minutes before transferring to a wire rack to cool completely.
  11. While cookies cool, beat butter for the filling in a medium bowl until smooth.
  12. Gradually add powdered sugar, beating until fluffy.
  13. Mix in milk, vanilla extract, and a pinch of salt. Adjust consistency with more milk or powdered sugar if needed.
  14. Once cookies are fully cooled, pair them by size.
  15. Spread or pipe about 1 tablespoon of filling on the flat side of one cookie.
  16. Top with a second cookie, pressing gently to form a sandwich.
  17. Repeat with remaining cookies and filling.

Notes

  • For best texture, use old-fashioned rolled oats.
  • Let cookies cool completely before filling to prevent melting the cream.
  • Store in an airtight container at room temperature for up to 3 days or refrigerate for up to a week.

    • Nutrition Information:
    Yield: 18 Serving Size: 1
    Amount Per Serving:Calories: 368Total Fat: 18gSaturated Fat: 10gTrans Fat: 0gUnsaturated Fat: 7gCholesterol: 61mgSodium: 134mgCarbohydrates: 49gFiber: 2gSugar: 31gProtein: 4g

    The nutrition information provided is an estimate calculated using an online nutrition calculator. It should not be considered a substitute for professional advice. Exact values may vary depending on ingredient brands, measurements, preparation methods, and portion sizes. For the most accurate results, please consult a registered dietitian or use your own preferred nutrition calculator.

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    © Kayden Sanders
    Category: Sweet Desserts
    Oatmeal sandwich cookies
    Kayden sanders
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