
I like to experiment in the kitchen, and will often throw together different kinds of cookies. If the cookie turns out OK I might send it into work with my husband or give it away to friends and family. I don’t always write down the recipe because I’m just playing around and will come up with something different next time. That’s how these cookies came about- I was just messing around in the kitchen and I sent the results to work with my husband. Flash forward a few months and some people in his office were asking for the recipe for those cookies I had sent… After getting a description of the cookies (there were a number of cookies they could have been), I realized that they were describing a cookie recipe I hadn’t bothered to save.
Today, I remedied that problem and did my best to recreate the requested cookie. This batch of cookies will be going to work with my husband, and I will be attaching the recipe to be shared around the office since I’m not sure anyone there knows about this little blog… This was a lesson to me to keep better records, and to maybe get feedback on the things I bake before I move along with recipe development.

This cookie checks a lot of boxes for me. We have oatmeal cookies with a hint of peanut butter filled with creamy peanut butter frosting. It is reminiscent of a Nutter Butter, but a soft, baked from scratch version. Since it is basically a dressed up oatmeal cookie, I eat the dough by the spoonful because there is no better cookie dough than oatmeal cookie dough! Plus, I love peanut butter, so win win!
Pro Tips:
I think I should say that eating raw cookie dough is not recommended. Of course, I have been eating raw cookie dough for most of my life (which is a fair amount of time), and I have never suffered from eating raw cookie dough. I cannot resist oatmeal cookie dough, and if you choose to eat a spoonful I won’t tell anyone.
Using a small cookie scoop (approximately 1 Tablespoon) this recipe yields 20 sandwich cookies. The recipe is easily cut in half for a smaller batch.
I love a true natural peanut butter for eating by the spoonful, but for baking purposes I use a Jif or Skippy. My go to is the “Natural Skippy” which does contain palm oil and does not need to be refrigerated.
It is so much easier to pipe peanut butter frosting onto the cookie than it is to spread it out.

Peanut Butter Oatmeal Sandwich Cookies
A homemade, baked from scratch “Nutter Butter” like sandwich cookie with peanut butter and oats sandwiched with a creamy peanut butter frosting.
- Prep Time: 15 minutes
- Cook Time: 10 minutes
- Total Time: 30 minutes
- Category: cookies
- Cuisine: dessert
Ingredients
Cookie:
1 cup softened butter
1/2 cup peanut butter
1 1/2 cups brown sugar
1/2 cup sugar
2 eggs
1 teaspoon vanilla
2 cups flour
1 teaspoon baking soda
1/2 teaspoon baking powder
1 teaspoon kosher salt
3 cups old fashioned oats
Filling:
1 cup peanut butter
1/2 cup softened butter
pinch of salt
1 cup powdered sugar
Instructions
Preheat oven to 350
Mix butter and peanut butter with both sugars until well incorporated. Add eggs and vanilla. Mix in the flour, baking soda and salt. Stir in the oats.
Scoop cookie dough onto a parchment lined baking sheet leaving a two inches of space between each cookie. Each scoop should be about a generous Tablespoon in size. Bake the cookies for approximately 8 minutes until set and golden at the edges. Allow to cool on the baking sheet for a few minutes before transferring to a rack to cool completely.
For the filling, mix the peanut butter, butter and salt until well incorporated. Add in the powdered sugar and mix to create a spreadable frosting.
To assemble, spread a generous Tablespoon of peanut butter filling onto the flat side of one cookie, and top with an additional cookie to form a sandwich.
Notes
Avoid using a natural peanut butter that requires refrigeration after opening. The natural oils can be problematic in baked goods and frostings.
This recipe calls for old fashioned rolled oats. Using a quick cooking or instant oat will alter the texture.
I press lightly on the balls of cookie dough before baking- not to flatten, but just a bit to even them out.
Keywords: sandwich cookie, peanut butter, oatmeal



Currently going back to math class so that I can brush up on the skills needed to double this recipe!
★★★★★
I’m sure we could all brush up on our math, but I’m going to rely on the 2x button located at the top of the recipe page! I have to say that doubling this recipe sounds like a great idea.