These Oatmeal Sandwich Cookies are to die for! Chewy oatmeal cookies filled with a chocolate marshmallow crème frosting. These are the most irresistible cookies ever and will completely change your mind about how amazing oatmeal cookies truly are.
Oatmeal cookies get a bad rep sometimes. Usually they are the last to go on the cookie plate and seen as too healthy or unexciting.
If done right though, they are one of the best feel-good cookies out there. These oatmeal sandwich cookies are a prime example of that.
They are soft and chewy and filled with a chocolate marshmallow crème frosting. They’re a little like those cookies at the store, only chocolate-fied (yes, that is a thing) and made with butter instead of shortening, so they are about a million times better.
The cookies work well as a standalone too. They are buttery and not too sweet.
A little crisp along the edges, and chewy all around. You can fill them with raisins (hey, they’re amazing if you know you’re getting raisin) or chocolate chips and/or nuts.
My malted chocolate chip hazelnut oatmeal cookies are a prime example of this.
The chocolate marshmallow crème is seriously amazing though. It’s the kind of frosting you will want to eat by the spoonful.
You will find excuses to slather it on your food. You may find yourself being intentionally messy when filling the oatmeal sandwich cookies, just so you can lick your fingers at the end.
In the recipe I use one whole egg and one egg yolk. This is to give the cookies just the right amount of spread and added richness.
I find that they don’t spread quite enough with a whole second egg, but if you really want to use up the egg white, you can certainly do so, and the cookies will still taste great.
I also cut down the amount of cinnamon in the cookies compared to standalone oatmeal cookies. If you want to have these cookies on their own, I recommend adding another 1/2 teaspoon of ground cinnamon.
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