In a stand mixer, beat butter and confectioners’ sugar together on medium speed, until the mixture is very smooth. Beat in vanilla, and peanut butter. Reduce mixer speed to low and add in flour, mixing until dough comes together. Mix in the chocolate chips.
Shape the dough into a log about 1 1/2 inches thick. Refrigerate the dough for at least 2 hours.
After dough is firm, preheat the oven to 325°F. Slice dough about 1/2 inch thick. You may need to gently reform some of the circles.
Bake for 18 to 20 minutes, until the cookies turn brown at the edges. Let cookies cool before serving. Store in airtight container.
The nutrition information provided are only estimates based on an online nutritional calculator. This is not a comprehensive list of all the nutrients in the recipe (i.e., does not include vitamins, cholesterol, etc). I am not a certified nutritionist. Please consult a nutritionist or doctor for accurate information and any dietary restrictions and concerns you may have.