Chewy chocolate cookies loaded with chopped peanut butter cups. Delicious refrigerator cookies that come together quickly, for easy baking later. Freezes well. Recipe makes 18-24 cookies.
In a medium bowl, whisk together flour, cocoa, baking soda, baking powder, and salt. Set aside. Roughly chop the peanut butter cups and set aside.
In a large bowl with a hand mixer (or a stand mixer on medium-low), cream together butter and both sugars until light and fluffy, about 2 minutes. Beat in the egg and vanilla until fully combined.
Scrape down the sides of the bowl. Add in the flour mixture and mix by hand with a spatula until just combined (no streaks of flour remain). Avoid overmixing.
Stir in the chopped peanut butter cups to distribute. Add dough to an airtight container and refrigerate for 8 hours (or up to 3 days).
Bake the cookies:
Preheat the oven to 350°F. Meanwhile, scoop chilled dough and place 2 inches apart on a lined or non-stick cookie sheet.
Bake for 9-11 minutes, until edges are set and tops just begin to crack. Let cool on cookie sheet for 5 minutes then remove to a cooling rack.
Store baked cookies for 4 days in an airtight container.
Notes
6 ounces of peanut butter cups is 8 regular sized cups (like Reese's). Cookie Baking Tips:
Cookies are best when chilled at least 8 hours, but can be baked right away if desired. They will be less flavorful, a little more crumbly and may spread more.
To freeze cookie dough: scoop chilled dough into portions and par-freeze on a lined cookie sheet for a few hours, then place in freeze safe bags or container. Cookies can be baked as instructed above from frozen-- you may need to add 2 minutes to bake time. Use frozen dough within 3 months.