HomeCookiesOatmeal Sandwich Cookies
Oatmeal Sandwich Cookies
Oatmeal Sandwich Cookies have a creamy, thick marshmallow filling sandwiched between 2 chewy , but soft oatmeal cookies.
- Prep20 min
- Cook12 min
- Total32 min
- Serves36 cookies
- Rating4.5

Oatmeal Sandwich Cookies have a creamy, thick marshmallow filling sandwiched between 2 chewy , but soft oatmeal cookies. They are the perfect after school snack when paired with a glass of milk.

This recipe makes a huge batch, about 3 dozen to be exact. That might be enough to feed the whole neighborhood.
Or just me. 🙂
If you generously fill the sandwich cookies with filling, you may run a little short, but the cookies are quite good eaten plain.
The cookies are just a little soft and chewy and flavored with cinnamon and nutmeg. They are made with shortening instead of butter which really helps them hold their shape and gives them a wonderful soft texture. I find they taste just like Little Debbie Oatmeal Cream Pies which were one of my favorite treats as a child.

I love to pile them high on a plate and watch them disappear.
How To Make Oatmeal Sandwich Cookies
(More detailed instructions below.)
- Make the cookie dough. Cream the shortening and brown sugar. Beat in egg and vanilla. Add dry ingredients.
- Bake cookies. Drop batter by rounded teaspoonfuls on prepared baking sheets. Bake 10 to 12 minutes. Let cool.
- Make filling. Beat shortening, sugar, and marshmallow cream until smooth. Beat in milk until it becomes a good spreading consistency.
- Assemble cookies. Spread filling on bottom half of cookies. Top with remaining cookies.

Storage
Will keep in an airtight container at room temperature for 4 to 5 days.
Recipe Tip
Use old-fashioned oats. They produce a chewier texture in the cookies.


More Delicious Cookie Recipes
- No-Bake Chocolate Oatmeal Cookies
- Butterfinger Cookies
- Oatmeal Butterscotch Cookies
- White Chocolate Oatmeal Cookies
Recipe source: Taste of Home
Originally posted May 6, 2016.
Disclosure: This post contains affiliate links.
Ingredients
Filling
Equipment Electric Stand Mixer, Rimmed Baking Sheets
Steps
- 1
Preheat oven to 350 degrees and lightly grease 2 baking sheets.
- 2
Using an electric mixer, cream shortening and brown sugar.
- 3
Add eggs, one at a time, beating well after each addition.
- 4
Add vanilla.
- 5
Combine flour, cinnamon, baking soda, salt, and nutmeg and add to mixture. Beat just until combined.
- 6
Stir in oats.
- 7
Drop batter by rounded teaspoonfuls onto prepared baking sheets. Place in oven and bake until golden brown, about 10-12 minutes. (You will have to bake multiple batches.)
- 8
Let cool on baking sheets 3 to 5 minutes and then remove to wire racks to cool completely.
- 9
To make filling, use an electric mixer to beat shortening, sugar, and marshmallow creme until smooth.
- 10
Beat in enough milk to get desired consistency.
- 11
Spread filling on the bottom of half of the cookies and top with remaining cookies.
Notes
Cookies can be stored at room temperature for 4 to 5 days.
Nutrition
- Calories302
- Carbs43
- Protein3
- Fat14
- Sodium123
- Fiber1
- Sugar29
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