The oven’s already humming, and I can’t help but sneak a bite of the first Oatmeal Sandwich Cookies With Maple Brown Sugar Buttercream. Sweet and chewy, they’re everything I crave after a long day. But here’s the kicker: you don’t need to spend hours in the kitchen to whip these up.
These cookies are perfect for late-night cravings or surprise guests. They come together in just about 30 minutes, which is way faster than most sandwich cookies (trust me on this). If you’re looking for a quick treat that feels special, these are it. You won’t want to share!
Why You’ll Love This Oatmeal Sandwich Cookies With Maple Brown Sugar Buttercream
- Super Easy Prep: Whipping up this dish is a breeze — just mix, drop, and bake! Seriously, anyone can do it.
- Sticky-Sweet Flavor: The combination of maple brown sugar buttercream and oats gives it a warm, cozy flavor that feels like home.
- Crisp-Tender Texture: You’ll love the contrast between the slightly crunchy edges and the chewy centers — it’s so satisfying to bite into!
- Perfect for Customization: Feel free to toss in some chocolate chips or nuts if you’re feeling adventurous; it’s super versatile that way.
- A Bit Messy: Just a heads up, assembling these sandwiches can get a little sticky (but honestly, isn’t that part of the fun?).
Oatmeal Sandwich Cookies With Maple Brown Sugar Buttercream Ingredients
For the Base:
unsalted butter (1 cup) — Use room-temp unsalted butter for a creamy mix, or it’ll clump up.
brown sugar (1 cup) — Don’t skimp on brown sugar; it’s gotta be packed tight for that rich flavor.
granulated sugar (1 cup) — Granulated sugar’s gotta be fine; coarse won’t dissolve properly and ruins the texture.
eggs (2 large) — Use large eggs; any smaller and your cookies might end up dry.
vanilla extract (1 teaspoon) — Use pure vanilla extract, not imitation, or you’ll miss that deep flavor punch.
old-fashioned oats (2 cups) — Stick with old-fashioned oats; instant ones’ll make your cookies mushy and sad.
all-purpose flour (1 cup) — Don’t swap all-purpose flour for whole wheat; your cookies need that lightness.
baking soda (1 teaspoon) — Baking soda’s essential for lift; if you skip it, your cookies’ll be flat as a pancake.
salt (1 teaspoon) — Don’t skip the salt; it enhances sweetness and balances flavors, trust me.
For the Buttercream:
unsalted butter (1 cup) — Sift powdered sugar for smooth buttercream; lumpy icing’s a no-go.
powdered sugar (2 cups) — Use real maple syrup, not pancake syrup, or the flavor’s gonna be totally off.
maple syrup (1 tablespoon)
vanilla extract (1 teaspoon)
Full measurements in the recipe card below.
How to Make Oatmeal Sandwich Cookies With Maple Brown Sugar Buttercream
1. Preheat the Oven: Set your oven to 350°F (175°C). Line baking sheets with parchment paper so your cookies don’t stick.
2. Cream the Base: In a large bowl, beat together the softened butter, brown sugar, and granulated sugar until smooth and creamy. You’ll want it to look fluffy and pale.
3. Add Eggs & Vanilla: Crack in the eggs one at a time, mixing well after each addition. Then stir in that glorious vanilla extract for a flavor boost.
4. Mix Dry Ingredients: In another bowl, whisk together the oats, flour, baking soda, and salt. This step’s important — don’t skip it or you might end up with clumps of baking soda (yikes).
5. Combine Mixtures: Gradually mix the dry ingredients into the wet mixture until just combined. Don’t overmix! The dough should be slightly sticky but hold its shape.
6. Scoop & Bake: Drop tablespoon-sized amounts of dough onto your prepared sheets, spacing them about 2 inches apart. Bake for 10-12 minutes until the edges are lightly golden — watch out for that moment when they go from golden to burnt if you’re not careful!
7. Cool & Assemble: Once baked, let them cool on the sheets for a few minutes before transferring to a wire rack to cool completely. Now it’s time for the fun part: spreading buttercream between two cookies to create those delightful Oatmeal Sandwich Cookies With Maple Brown Sugar Buttercream!
Exact quantities in the recipe card below.
How to Store Oatmeal Sandwich Cookies With Maple Brown Sugar Buttercream
- Room Temperature: Keep them in an airtight container for up to 3 days. (They’ll stay soft and chewy, but the buttercream might get a little melty if it’s warm.)
- Refrigerator: Store in a sealed container for about a week. (The cookies can dry out a bit, so you might want to pop them in the microwave for 10 seconds before enjoying.)
- Freezer: Wrap individually in plastic wrap, then place in a freezer-safe bag for up to 3 months. (They freeze pretty well, but the buttercream can lose some of its fluffiness.)
- Reheating: If you want to enjoy them warm, pop them in the microwave for about 10 seconds or until they’re just warm to the touch. (You’ll smell that sweet buttercream wafting through the air!)
Just keep in mind, the texture changes after storage — they’re best fresh!
What to Serve with Oatmeal Sandwich Cookies With Maple Brown Sugar Buttercream?
It’s sweet and rich, so balancing it with something light or tangy helps prevent it from being too much.
- Fresh Fruit Salad: A mix of berries adds a burst of acidity and brightness to cut through the sweetness.
- Cold Milk: The classic pairing! It’s a cool, creamy contrast that softens the cookie’s richness with every sip.
- Lemon Sorbet: Try this frozen treat for a refreshing acidity that balances the sweetness perfectly. Just scoop and serve!
- Iced Coffee: The slightly bitter notes in iced coffee contrast nicely with the sweet buttercream while keeping things chilled.
- Greek Yogurt with Honey: A dollop of tangy yogurt drizzled with honey gives creaminess and a bit of texture without overwhelming flavors.
- Dark Chocolate Shavings: Sprinkle some on top for a pop of bitterness that plays well against all that sweetness (just a tablespoon or two).
- Chai Tea: A warm spiced tea offers comforting warmth alongside your sandwich cookies, providing an inviting aroma that complements them.
- Coconut Whipped Cream: Light and airy, this adds a tropical twist while cutting through the richness (whip it in just 5 minutes).
Oatmeal Sandwich Cookies With Maple Brown Sugar Buttercream Variations
Here’s how to play with this recipe and make it your own!
- Chocolate Chip Surprise: Fold in 1 cup of chocolate chips into the dough for a melty-gooey twist.
- Nutty Crunch: Add 1 cup of chopped nuts (walnuts or pecans) with the dry ingredients for extra texture.
- Cinnamon Kick: Mix in 1 teaspoon of ground cinnamon with the dry ingredients for a warm, spiced flavor.
- Maple Swirl Upgrade: Drizzle in 2 tablespoons of maple syrup into the buttercream for an extra hit of sweetness.
- Dried Fruit Fusion: Toss in 1 cup of raisins or dried cranberries when mixing the wet and dry ingredients for fruity bites.
- Gluten-Free Swap: Use 1 cup of gluten-free flour instead of all-purpose flour for a gluten-free option.
- Oatmeal Raisin Classic: Just add 1 cup of raisins to the dough to keep it traditional and comforting.
Make Ahead Options for Oatmeal Sandwich Cookies With Maple Brown Sugar Buttercream
I like to prep the cookies for my Oatmeal Sandwich Cookies With Maple Brown Sugar Buttercream ahead of time. You can make the cookie base up to three days in advance and store them in an airtight container at room temperature (just don’t stack ‘em or they’ll stick together). The buttercream also holds well in the fridge for about a week, so you can whip that up ahead too. But here’s the thing: once you assemble the sandwiches, they’re best enjoyed within a day or two; otherwise, they get a bit soggy. So, finish assembling right before serving. Just make sure you’ve got enough cookies on hand!
Oatmeal Sandwich Cookies With Maple Brown Sugar Buttercream Recipe FAQs
Can I make Oatmeal Sandwich Cookies With Maple Brown Sugar Buttercream ahead of time?
Absolutely! You can bake the cookies a day or two in advance and store them in an airtight container. Just wait to assemble them with the buttercream until you’re ready to serve, so they stay fresh and don’t get soggy. If you wanna freeze them, layer parchment paper between cookies to keep them from sticking together. Just make sure they’re completely cool first!
What can I substitute for brown sugar in this recipe?
I wouldn’t recommend skipping brown sugar, but if you really need to, try using a mix of granulated sugar and molasses (1 cup granulated plus 1 tablespoon molasses should work). The flavor won’t be quite the same, but it’ll still add some depth. Remember, packing that brown sugar tight is key for richness! Just keep an eye on your dough; it should be slightly sticky.
Why did my Oatmeal Sandwich Cookies With Maple Brown Sugar Buttercream turn out flat?
Flat cookies usually mean there’s not enough lift, so check if you used baking soda — that’s essential! Also, make sure your butter was softened but not melted; melted butter can cause spreading. When mixing dry ingredients with wet ones, don’t overmix; just combine until it’s slightly sticky. If they look golden around the edges after 10-12 minutes, you’re good!
What’s the best way to store these cookies?
Store your Oatmeal Sandwich Cookies With Maple Brown Sugar Buttercream in an airtight container at room temperature for up to a week. If you live in a humid area, consider refrigerating them to keep that buttercream nice and firm. Just remember to let them sit out for a few minutes before digging in because cold buttercream isn’t as dreamy as soft!
Final Thoughts on Oatmeal Sandwich Cookies With Maple Brown Sugar Buttercream
These Oatmeal Sandwich Cookies With Maple Brown Sugar Buttercream are all about that flavor payoff. The combination of rich brown sugar and real maple syrup in the buttercream just takes these cookies to another level. Honestly, if you’ve been putting this off, tonight’s the night. You’ll have a batch of cookies that not only taste amazing but also look like you put in way more effort than you actually did (and trust me, no one needs to know how simple it really is). Drop a comment if you added anything — I’m always curious!

Oatmeal Sandwich Cookies With Maple Brown Sugar Buttercream
Ingredients
Method
- Preheat your oven to 350°F (175°C). Line baking sheets with parchment paper.
- In a large bowl, cream together the softened butter, brown sugar, and granulated sugar until smooth.
- Add the eggs one at a time, mixing well after each addition, then stir in the vanilla extract.
- In another bowl, whisk together the oats, flour, baking soda, and salt.
- Gradually mix the dry ingredients into the wet ingredients until just combined.
- Drop tablespoon-sized amounts of dough onto the prepared baking sheets, spacing them about 2 inches apart.
- Bake in the preheated oven for 10-12 minutes or until the edges are lightly golden.
- Remove from the oven and let cool on the baking sheets for a few minutes before transferring to a wire rack to cool completely.
- In a medium bowl, beat the softened butter until creamy.
- Gradually add the powdered sugar and mix until smooth and fluffy.
- Mix in the maple syrup and vanilla extract until fully incorporated.
- Once the cookies are completely cool, spread a generous amount of buttercream on the flat side of one cookie.
- Top with another cookie, flat side down, to create a sandwich.
- Repeat until all cookies are assembled.






