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Old Fashioned Iced Oatmeal Cookies are a nostalgic cookie recipe! Perfectly textured with a combination of whole and blended oats, deliciously flavored with spices, and topped with a sweet icing glaze!
There are certain dessert recipes that bring back old memories, and this is one of them. I also remember my mom and grandma making Popcorn Balls, and especially Lemon Bars all the time when I was growing up.
old fashioned Oatmeal Cookies
Hello Lil’ Luna readers! It’s me Natalie, from Life Made Simple.
Today I’m sharing these old fashioned iced oatmeal cookies. They taste a lot like my mother’s classic oatmeal cookies, only 100x better! Growing up my mom always made us oatmeal chocolate chip cookies, so naturally I love any cookie with a good amount of oatmeal in them.
A few months ago I even went a little crazy and made some oatmeal cookies with rice krispies in them (which were awesome by the way)! However, I’ve always loved those iced oatmeal cookies, so I decided to try making them myself.
I couldn’t believe how easy it was and how incredibly yummy they were! This recipe is definitely a keeper, one you’re going to want to make time and time again!
How to Make iced oatmeal cookies
There’s only one small catch to this cookie recipe. Don’t worry, it’s just a small step in the process that makes the oats the PERFECT texture.
PULSE OATS. You’re going to need a food processor or blender to grind up some old-fashioned oats. It’s almost like we’re making a combo of oat flour and rolled oats. Just pour them in and pulse or grind 10-12 times. That’s it!
DOUGH. In a large mixing bowl or the bowl of a stand mixer, cream the butter, sugars and vanilla extract together until light and fluffy, about 2 minutes on high speed. With mixing speed on low, add the egg and mix until incorporated. Gradually add the dry ingredients, mixing just until combined.
Note: When you have your dough mixed up it’ll be pretty soft and sticky. You might want to let it rest in the refrigerator for 20-30 minutes or so, that way your hands don’t get messy and the oats have a little time to absorb some moisture.
BAKE. Use a standard size cookie scoop to place them on lined sheets and bake them anywhere from 10-15 minutes. If you like softer oatmeal cookies stick to 10-11 minutes, if you’re like me and like crispy ones, go 14-15 minutes!
GLAZE. Mix the icing ingredients together while the cookies are cooling. Once they’re cooled, dip each cookie top down into the glaze and let it harden.
Once the glaze hardens they’re ready to be devoured… and trust me, they will be!
Tips for Making and Storing
Can you just use oat flour? Using purely oat flour with no variety in texture won’t allow the cookies to bake properly. The powdery texture of just oat flour doesn’t give the cookies the bite or correct texture it needs.
Why do you dip the cookie in icing instead of frost? When you dip them in the glaze, you allow it to get into the little nooks and crannies of the cookies. So overall, it just gives it more of the old fashioned look.
You can store these on the counter in an air-tight container. Separate the layers with parchment or wax paper.
If you want to freeze the dough, make sure to portion and roll them into balls before freezing. Line them on a baking sheet and freeze until solid. Once frozen, transfer them to a freezer safe container.
For more oatmeal cookies, try:
- Peanut Butter Oatmeal Cookies
- Oatmeal Chocolate Chip Cookies
- Oatmeal Coconut Cookies
- Chocolate Coconut Oatmeal Cookies
- Oatmeal Raisin Cookies
- Oatmeal Cookies
Iced Oatmeal Cookies Recipe
Ingredients
Cookie
- 1 cup old fashioned rolled oats
- 1 cup all-purpose flour and 2 tbsp
- 1 tsp cornstarch
- 1/2 tbsp baking powder
- 1/4 tsp baking soda
- 1/4 tsp salt
- 1 1/4 tsp cinnamon
- 1/4 tsp ground nutmeg
- 8 tbsp butter softened
- 1/2 cup brown sugar packed
- 1/4 cup sugar
- 1 egg
- 1 tsp vanilla extract
Glaze
- 1 cup powdered sugar
- 1/4 tsp vanilla extract
- 1 1/2 tbsp milk
Instructions
- Preheat oven to 350 degrees. Line baking sheets with parchment paper or baking mats.
- Pour oats into a food processor and pulse about 10-12 times (you want it to be an even mix of ground and whole oats). In a medium size bowl, combine the oats, flour, cornstarch, baking powder, baking soda, salt, cinnamon and nutmeg, whisk together.
- In a large mixing bowl or the bowl of a stand mixer, cream the butter, sugars and vanilla extract together until light and fluffy, about 2 minutes on high speed. With mixing speed on low, add the egg and mix until incorporated. Gradually add the dry ingredients, mixing just until combined. The dough is fairly soft so I prefer refrigerating it for 20-30 minutes before rolling, that way my hands aren’t a mess and it gives it time to rest.
- Using a standard size cookie scoop, place balls of dough onto each sheet. Place in the oven and bake for 10-14 minutes. I prefer crisp iced oatmeal cookies so I leave mine in for the full 14.
- Remove from the oven and allow to cool on the sheets for 3 minutes before transferring to a wire rack to cool completely.
- Once the cookies are cool, whisk together all of the ingredients for the glaze in a small mixing bowl. Dip the tops of the cookies in and swirl to remove any excess. Allow to set for 30 minutes.
Nutrition
Nutrition information is automatically calculated, so should only be used as an approximation.
Confused with the reference to rolling after refrigeration. The next statement has the cookie dough being scooped, so why are they being rolled?
The reference just means rolling in between your palms. So to scoop with a cookie scooper, then just a quick little roll around the palms to make the cookie dough ball nice and smooth and even. Not rolling with a rolling pin.
These were SO good. I baked some at 12 & others at 14… both so good. Two things.. if you need them to be more flat, just press them down before you bake them. And second, when you make the icing, be sure to look for the color you want. If you put too much milk/vanilla… just add some powdered sugar. Again, SO YUMMY.
Thanks for sharing! I’m so glad you enjoyed the cookies!!
I loved this wonderful tasting cookie. I didn’t leave it in the whole 14 minutes. Ten to eleven was good. Brought me back to my childhood. Mmmmm
Aw, I’m so happy to hear that! Thanks for sharing!
I made these a few weeks ago and loved them so much! I am in the middle of making them for my parents now, my mother loves oatmeal cookies 🙂
Something I did try is adding 1/4 tsp of McCormick’s Butter Extract to the icing to give it more of a a buttercream style of flavoring and it was absolutely delicious!
Thank you so much for this recipe.
The dough way dry. Hope they turn out well!
Let me know how they turned out. I’d love to hear!
Oh my goodness. These are AMAZING!! Best oatmeal cookie out there. Seriously. I’m on a diet and made these because they didn’t have chocolate and knew I wouldn’t eat all of them. Well, that didn’t work. The texture is just perfect AND it’s moist.
I’m so glad you enjoyed them so much! Thanks for sharing! Hopefully they didn’t crash your diet too much. 😉
Scrumptious! Crispy, crunchy, deliciousness. I did modify the egg portion of the recipe as we have allergies in my home but this recipe help up! Thank you for sharing, I will definitely make again and again.
I’m so happy it worked well with your modifications. Thanks for sharing!
How did you modify the egg portion? I was thinking of using applesauce but wasn’t sure that would work? Thanks!
Applesauce would work great! Another popular alternative is mashed banana. Hope this helps!
So good!!
My first batch to go in the oven came out flat like pictured. Then I put my dough in the fridge. My second batch came out big and fluffy (the type I was going for!)
Have you tried making these dairy free? Maybe using apple sauce instead of butter? (Not so worried about the glaze)
Yay! I am happy you tried them! I have not tried making them dairy free. If you try them, I’d love to know what you did & thought. Thank you!
Are the cookies stackable? Meaning, does the icing eventually harden? Thanks much!
The icing does harden, so they should be ok to stack, once they have set.
Tasted good but mine were def. Not flat. They were little mounds. Was really looking for more of a flat crispy cookie
Glad you liked the taste 🙂 You could always press them down a little, before baking to see if that helps.
Mine were totally flat and crispy and I was hoping for a rounder, thicker cookie. Not sure if my levening agent had anything to do with it? They were so good though!
It could have been that. You didn’t press them down or anything, did you? You would probably want to lessen the baking time, as well.