Preheat your oven to 350°F.
Combine the peanut butter, light brown sugar, white granulated sugar, egg, and vanilla extract in a medium mixing bowl. Using a hand mixer, mix the dough on medium speed for 2-3 minutes until all the ingredients are well incorporated.
1 cup peanut butter, ½ cup light brown sugar, ¼ cup white granulated sugar, 1 tsp vanilla extract, 1 egg
Line a sheet pan with parchment paper (I use the pre-cut parchment sheets that I linked above– they make life so much easier).
Using a #40 cookie scoop (about 1.5 tbsp), measure out and roll the dough into small balls. After placing them on your sheet pan, crosshatch the cookies using a fork. I bake about 12 cookies at a time on a regular sheet pan, although you could fit more if you’d like as they don’t spread very much (See Note 2 below).
Bake the cookies for 8 minutes at 350°F. When the cookies are done, the dough should no longer look wet and the cookie edges should just barely be turning golden brown. (See Note 3 below)
Once removed from the oven, let the cookies sit on the sheet pan for 5 minutes before transferring them to a cooling rack. They will be very soft and fragile when they first come out of the oven, so do not try to move them right away. They will also continue to bake a little bit on the tray.
Let the cookies cool and enjoy! They are a perfect little treat for any peanut butter lovers.