Flourless Peanut Butter Cookies are easy gluten-free cookies cookies packed with peanut butter, chewy oats and dark chocolate! They're so easy to make and are ready in about 30 minutes!
Preheat the oven to 350 degrees F and line a baking sheet with parchment paper.
Place the peanut butter, maple syrup, egg, baking soda and vanilla in a medium bowl and beat on medium speed with a hand mixer until combined.
Stir in the oats and dark chocolate chips.
Using a 1 1/2" cookie scoop, scoop the cookie batter (about a heaping tablespoon of batter) and place on the prepared baking sheet about an inch and a half apart. Flatten the cookies slightly with the palm of your hand as they won't spread while baking.
Bake for 10 minutes or until set, then remove from heat and sprinkle the tops of the cookies with the flaky sea salt and place on a wire rack to cool. Serve and enjoy!
Notes
The oats may be omitted if you'd like to make your cookies grain free.
The best type of peanut butter to use in these flourless peanut butter oatmeal cookies is natural peanut butter, which only includes peanut butter and salt. Natural peanut butter is the only kind of peanut butter that I've used in this recipe, so if you choose to use a different type of peanut butter, you may encounter a different outcome with your cookies.
Cookies may be stored in an airtight container at room temperature for up to 5 days. They will stick together slightly, so separating them with a sheet of parchment or waxed paper is a good idea.