Soft and Chewy Oatmeal Cinnamon Cookies

These oatmeal cinnamon cookies are all about a soft, tender center and a gentle cinnamon warmth that makes the whole house smell like a bakery. They come together fast with just a bowl and a hand mixer, no chilling required unless you want extra thick cookies.

They stay pillowy for days thanks to the brown sugar and a good dose of oats, so a Tuesday bake tastes just as fresh on Thursday. No dry crumbs, no brittle edges, just a simple cookie you’ll reach for again and again.

Why These Cookies Stay Soft for Days

Most oatmeal cookies lose their chew by the next morning. Not these. The brown sugar pulls in moisture and the rolled oats create a sturdy but tender crumb that holds onto it.

I use a full 1 1/2 teaspoons of cinnamon, which gives every bite that unmistakable warm spice without overpowering the buttery cookie flavor. The oats themselves add a light, nutty texture that complements the softness.

They’re sturdy enough to pack in a lunchbox, yet tender enough that they disappear within minutes at my house. No fancy steps, just a classic cookie that works every time.

Ingredients

• 1/2 cup unsalted butter, softened: letting it come to room temperature helps it cream smoothly; salted butter works, just reduce the added salt to a pinch.
• 3/4 cup packed light brown sugar: the molasses keeps the cookies moist for days.
• 1/4 cup granulated sugar: adds a hint of crispness at the edges.
• 1 large egg, at room temperature
• 1 tsp vanilla extract
• 1 cup all-purpose flour: spoon the flour into the cup and level it for an accurate measure.
• 1 1/2 cups old-fashioned rolled oats: use old-fashioned, not quick oats, for the best chew and structure.
• 1 1/2 tsp ground cinnamon: adjust to 1 tsp if you prefer a milder spice.
• 1/2 tsp baking soda
• 1/4 tsp salt

Variations and Swaps

• Add chocolate chips or raisins: Fold in 1/2 cup after mixing the dough for an easy twist.
• Boost the spice: Swap half the cinnamon for 1/4 tsp nutmeg for a deeper, slightly earthy note.
• Richer sweetness: Use dark brown sugar; it gives the cookies a more caramel-like flavor.
• Dairy-free option: Replace the butter with a good vegan butter stick and use a flax egg. The texture will be slightly less chewy but still good.

If you love these, our Chewy Ginger Molasses Cookies are another favorite you might enjoy.

How to Make Oatmeal Cinnamon Cookies

Step 1: Mix the Dry Ingredients

Preheat your oven to 350°F (175°C) and line a baking sheet with parchment paper. In a medium bowl, whisk together the 1 cup flour, 1 1/2 cups oats, 1 1/2 tsp cinnamon, 1/2 tsp baking soda, and 1/4 tsp salt until well combined.

Whisking here does two things: it evenly distributes the leavening so you won’t get a bitter soda pocket, and it breaks up any flour clumps. A quick 30 seconds is all you need.

Step 2: Cream Butter and Sugars

In a large bowl, beat the 1/2 cup softened butter, 3/4 cup brown sugar, and 1/4 cup granulated sugar with an electric mixer on medium speed. Keep going until the mixture looks noticeably paler and fluffy, about 2 to 3 minutes total.

Stop and scrape the sides of the bowl with a spatula once or twice so no butter hides at the bottom. The mixture should be light and a bit paste-like, ready to take on the egg.

Step 3: Combine Wet and Dry

Add the 1 large egg and 1 tsp vanilla to the butter mixture, and beat just until blended. Pour in the dry ingredients all at once and mix on low speed, stopping as soon as you no longer see streaks of flour. Overmixing will develop gluten and make the cookies tough.

The dough will be thick and slightly sticky. That’s a good sign. If any dry bits are stuck at the bottom, fold them in gently with a spatula.

Step 4: Scoop and Bake the Cookies

Drop rounded tablespoons of dough onto the lined baking sheet, leaving about 2 inches between each mound. Slide the sheet into the preheated oven and bake for 10 to 12 minutes. The cookies are done when the edges are barely golden and the centers still look a little underdone.

Let the cookies rest on the hot baking sheet for 5 full minutes, they’ll continue to set and sink slightly. After that, move them to a wire rack to cool completely, though a warm cookie straight off the rack is hard to resist. The tops will be crackly and the middles soft.

Tips for the Chewiest Cookies

• Use old-fashioned rolled oats, not instant or quick oats. Quick oats can soak up too much moisture and make the cookies soft and almost mushy instead of chewy.
• For thicker cookies that don’t spread much, chill the dough in the fridge for 30 minutes before scooping. No need to compensate for bake time, just scoop and bake as usual.
• Let your butter soften on the counter for about 30 minutes. If it gets too soft or greasy, the cookies will spread too much in the oven.
• If you want a bigger cinnamon flavor, go up to 2 teaspoons. The spice mellows a bit during baking, so don’t be shy.
• Spoon and level your flour. Scooping directly from the bag can add an extra tablespoon or two, leading to dry, crumbly cookies.

Bake times adjust slightly with cookie size:

Storing and Freezing Cookies

• Room temp: Keep the cookies in an airtight container at room temperature for up to 5 days. Tuck a slice of plain bread in the container; it gives off moisture and keeps the cookies soft.
• Freeze baked cookies: Stack them in a freezer-safe bag with parchment between layers. They keep for up to 3 months. Thaw on the counter for about an hour.
• Freeze dough: Scoop balls onto a baking sheet, freeze until firm, then pop them into a zip-top bag. Bake straight from frozen, adding 1 to 2 extra minutes to the bake time.

Frequently Asked Questions

Why did my cookies spread too much?

The most common cause is butter that’s too warm or melty. For the best shape, butter should be soft but still cool to the touch. Chilling the dough also helps control spread.

Can I make these gluten-free?

You can, by using a 1-to-1 gluten-free flour blend and certified gluten-free oats. The cookies will be a bit more delicate, so let them cool completely before moving them.

Do I need an electric mixer?

No, a hand mixer just makes creaming faster. Use a sturdy wooden spoon and beat the butter and sugars vigorously for 4 to 5 minutes until they’re fluffy, then continue with the rest as written.

Can I add nuts to these cookies?

Absolutely. Fold in 1/2 cup of toasted chopped pecans or walnuts after mixing the dough. They add a nice crunch that contrasts with the soft center.

Oatmeal Cinnamon Cookies Recipe

Print Recipe Pin Recipe

Prep Time 15 minutes mins

Cook Time 12 minutes mins

Total Time 27 minutes mins

Servings: 24 cookies

Calories: 105

Ingredients Method Notes

Ingredients

  

• 1/2 cup unsalted butter, softened
• 3/4 cup packed light brown sugar
• 1/4 cup granulated sugar
• 1 large egg, at room temperature
• 1 tsp vanilla extract
• 1 cup all-purpose flour
• 1 1/2 cups old-fashioned rolled oats
• 1 1/2 tsp ground cinnamon
• 1/2 tsp baking soda
• 1/4 tsp salt

Method

 

1. Preheat the oven to 350°F (175°C) and line a baking sheet with parchment paper.
2. In a medium bowl, whisk flour, oats, cinnamon, baking soda, and salt until combined.
3. In a large bowl, beat butter, brown sugar, and granulated sugar with an electric mixer on medium speed until light and fluffy, about 2 to 3 minutes. Beat in egg and vanilla until blended.
4. Add the dry ingredients to the wet mixture and mix on low speed just until no flour streaks remain. Do not overmix.
5. Drop the dough by rounded tablespoonfuls onto the prepared baking sheet, spacing them about 2 inches apart.
6. Bake for 10 to 12 minutes, until the edges are golden and the centers still look slightly underdone. Let the cookies cool on the sheet for 5 minutes, then transfer to a wire rack to cool completely.

Notes

Chill the dough for 30 minutes before scooping if you want thicker, chewier cookies. For even baking, bake one sheet at a time on the middle rack.