This single serving oatmeal cookie has wonderfully crunchy edges and a gooey center, making it the perfect cookie. It's wonderfully spiced with cinnamon, and a great cookie to add raisins to, if you like them.
Cream together ½ Tablespoon softened butter, 1 Tablespoon sugar, 1 Tablespoon brown sugar. Since it's such a small amount of butter and sugar, it looks more pebbly than creamed and smooth. I recommend pressing it together a few times with a rubber spatula while mixing. Once it looks well incorporated after pressing it together, you can add the next ingredients.
Add in egg yolk, ⅛ (or ¼) teaspoon vanilla extract. Mix until well combined.
Add 3 Tablespoons all purpose flour, ⅛ teaspoon salt, ⅛ teaspoon baking soda, ⅛ heaping teaspoon cinnamon. Mix until combined. Add more flour if it's very sticky.
Add 2 Tablespoons oats, optional 1 Tablespoon raisins. Stir in with rubber spatula.
Form into a ball, it may be a bit sticky, but as long as it forms into a ball, you're ok.
Place cookie dough ball in the center of your baking sheet with mat/parchment paper. Don't press down on cookie dough.
Bake in 325 degree F oven for 15-20 minutes, or until desired doneness.
Video
Notes
This recipe is easy to double or triple, etc for a few more cookies.
The butter and sugar mixture will be pebbly when you cream it because there just isn't enough volume to fill up the bowl and mix well. Press it together a few times in between mixing. It's done once they're combined well and color has lightened.
You can probably swap out ⅓- ½ of the all purpose flour for whole wheat flour for a nuttier flavor.
You can bake it in an air fryer too, just use foil or a baking mat, cook at 290 degrees F for 12-14 minutes. I prefer the texture of an oven baked cookie, but this works too.
Refrigerate the dough for 15-30 minutes for a thicker cookie.
The cookie will spread when baked, I recommend pressing in the edges with a spoon or rubber spatula after it comes out of the oven. See video for how to do this.
Optional add-ins: chocolate chips, butterscotch chips, chopped nuts, pumpkin pie spice (instead of cinnamon), etc.