Step 1

Place rack in the center of your oven and preheat oven to 350°F. Line an 8x8-inch baking dish with parchment paper and lightly coat with cooking spray. Set aside.

Step 2

In a large mixing bowl, beat together the peanut butter, brown sugar, baking soda, and salt on medium speed until well combined.

Step 3

Add the egg and vanilla, then mix on medium low, just until incorporated. By hand, stir in the chocolate chips and oats.

Step 4

Press the dough into the prepared baking pan. Bake for 22 minutes, until golden and the top is set. Let cool completely in the pan. Remove, slice and serve.