These peanut butter chocolate chip cookies are the perfect balance of salty and sweet, with a rich, tender center that melts in your mouth. Make a batch when you need a treat that’ll disappear from the cookie jar in record time.
Preheat oven to 325°. In a large bowl, beat the melted butter and sugars together with an electric mixer (or stand mixer) on medium speed until smooth and the color lightens, 1-2 minutes. Beat in the egg, yolk, and vanilla until combined.
Reduce the speed to low and slowly add half the flour, the salt and baking soda, and then the second half of the flour. Mix in the chips until incorporated.
Working with 2 tablespoons of dough at a time, roll them into a ball and place them on a cookie sheet about 2 inches apart. Bake the cookies until the edges are set and beginning to brown but the middles are still soft and puffy, around 15 minutes.
Let the cookies cool on the baking sheet for 10 minutes and then transfer to a wire rack to let cool completely.
Notes
If you want thicker cookies, chill the dough for at least 30 minutes before baking.
The cookies may look slightly underdone in the center when you take them out of the oven, but they will continue to set as they cool.
For an extra touch of flavor, sprinkle a little sea salt on top of the cookies before baking.
While semi-sweet chocolate chips are classic, feel free to mix it up with dark chocolate chunks, milk chocolate chips, or even white chocolate chips. You can also use M&Ms for a fun twist!