These Peanut Butter Oatmeal Chocolate Chip Cookies are thick, chewy, and filled with creamy peanut butter, rolled oats, and rich chocolate chips. A simple, bakery-style cookie recipe perfect for any occasion. No chill time or electric mixer required.
Preheat the oven to 350℉/180℃ and line 2 baking trays with parchment paper. Melt the butter and allow it to cool as you prep the rest of the ingredients.
In a bowl, add the flour, oats, baking soda, baking powder, cornstarch, and cinnamon. Stir to combine and set aside.
In a large bowl, add the butter (can be lukewarm), brown sugar, and white sugar. Whisk to combine.
Add in peanut butter, and whisk until smooth, scraping the sides of the bowl as needed.
Add in the egg, egg yolk, and vanilla. Continue whisking until smooth.
Mix in the dry ingredients just until a soft cookie dough forms - do not over-mix.
Add in the chocolate chips and mix.
Scoop the cookie dough on the baking tray, evenly spacing them out from one another. I baked 6 per tray. Slightly press the balls down for better spreading. Add extra chocolate chips on top if desired.
Bake the cookies for 13-16 minutes or until the edges are baked and the middles remain slightly puffy. Allow to cool, and enjoy!
Notes
*Salt: I didn't add any salt to this recipe as I find the recipe find without it because of the salt from the peanut butter. If you'd like to still add some, feel free to add 1/4 tsp.