So you’re craving a cookie that’s soft, cozy, lightly spiced, and casually wearing a thick layer of icing like it owns the place? Yeah… same. These Crumbl Iced Oatmeal Cookies are what happen when classic oatmeal cookies decide to glow up and live their best bakery life.
They’re thick, chewy, warmly spiced, and topped with that smooth vanilla icing that makes you forget all about self-control. One bite in and suddenly you’re like, “Oh. This is why people line up for these.”
Why This Recipe is Awesome
Let’s be honest—these cookies did not come to play.
- Thick, soft, bakery-style cookies just like Crumbl
- Warm cinnamon and brown sugar flavor without being boring
- That iconic sweet vanilla icing on top (the real star)
- Way cheaper than buying them—and you don’t have to leave your house
Also? These cookies feel fancy but are surprisingly easy to make. No weird techniques, no stress. Just solid, comforting cookie energy.
Ingredients You’ll Need
Nothing wild—just the right combo of cozy classics.
For the Cookies
- 1½ cups all-purpose flour – structure matters
- 1½ cups quick oats – classic oatmeal texture
- 1 tsp baking soda – helps them puff just right
- ½ tsp salt – balance is key
- 1½ tsp ground cinnamon – warm and cozy vibes
- ¾ cup unsalted butter, softened – not melted
- ¾ cup brown sugar – chewiness hero
- ¼ cup granulated sugar – sweetness backup
- 1 large egg – holds it all together
- 1½ tsp vanilla extract – always necessary
For the Icing
- 1½ cups powdered sugar – smooth and sweet
- 2–3 tbsp milk or cream – adjust as needed
- ½ tsp vanilla extract – flavor boost
💡 Key Tip: Use quick oats, not old-fashioned. Texture matters here.
Step-by-Step Instructions
1️⃣ Preheat and prep
Preheat your oven to 350°F (175°C). Line baking sheets with parchment paper.
Future-you will thank you for the easy cleanup.
2️⃣ Mix dry ingredients
In a bowl, whisk together flour, oats, baking soda, salt, and cinnamon.
Set aside and feel productive.
3️⃣ Cream butter and sugars
In a large bowl, beat butter, brown sugar, and granulated sugar until light and fluffy.
This step = soft cookies. Don’t rush it.
4️⃣ Add egg and vanilla
Mix in the egg and vanilla extract until fully combined.
Smells good already, right?
5️⃣ Combine everything
Gradually add dry ingredients to the wet mixture.
Mix just until combined—overmixing is the enemy.
6️⃣ Scoop big cookies
Scoop large dough balls (about ¼ cup each) and place them well-spaced on baking sheets.
Gently press down slightly—they should stay thick.
7️⃣ Bake
Bake for 10–12 minutes, until the edges are set but centers look soft.
They’ll finish cooking as they cool. Trust the process.
8️⃣ Cool completely
Let cookies cool on the baking sheet for 5 minutes, then transfer to a rack.
Do not ice warm cookies. This is not negotiable.
Common Mistakes to Avoid
- Using old-fashioned oats
Texture will be off. Quick oats = closer to Crumbl. - Overbaking
These cookies should be soft. If they look fully done, you went too far. - Icing warm cookies
Melted icing = sad, sticky mess. - Skipping cinnamon
This is an oatmeal cookie, not a sugar cookie in disguise.
Alternatives & Substitutions
Because flexibility is always welcome.
- Want thicker cookies?
Chill the dough for 20–30 minutes before baking. - No butter?
Use a high-quality plant-based butter—works surprisingly well. - Extra spice lover?
Add a pinch of nutmeg or allspice. - Less sweet icing?
Add a tiny pinch of salt or a drop of lemon juice to balance it.
IMO, a slightly thick icing layer is non-negotiable. Go big or go home.
FAQ (Frequently Asked Questions)
Do these really taste like Crumbl?
Yes—soft, thick, and iced just like the real deal.
Can I make the cookies smaller?
You can, but the thick bakery-style size is part of the magic.
Can I freeze the dough?
Absolutely. Scoop first, freeze, then bake straight from frozen.
How long do they stay fresh?
Up to 4 days in an airtight container.
Can I freeze iced cookies?
Yes, but freeze them flat and well-covered.
Why quick oats instead of rolled oats?
Quick oats give that smooth, classic Crumbl texture.
Final Thoughts
These Crumbl Iced Oatmeal Cookies are cozy, soft, and unapologetically indulgent—in the best way possible. They’re perfect for holidays, bake sales, or those moments when you just need a really good cookie.
Bake a batch, ice them generously, and try not to eat three in a row.
Or do. Honestly? You deserve it 🍪✨
Printable Recipe Card
Want just the essential recipe details without scrolling through the article? Get our printable recipe card with just the ingredients and instructions.
