1cup(227g)salted butter, softened to room temperature
½cup(128g)creamy peanut butter
¾cup(159g)granulated sugar
¾cup(159g)light brown sugar
2large eggs
1teaspoonvanilla extract
2cups(284g)all-purpose flour
½cup(43g)unsweetened cocoa powder (see note)
1teaspoonbaking soda
1teaspoonbaking powder
¼teaspoonsalt
1cup(170g)semisweet chocolate, melted and cooled to lukewarm
1cup(170g)peanut butter chips or Reese's pieces
1cup(170g)semisweet, milk or bittersweet chocolate chips
Instructions
Preheat the oven to 350 degrees F. Line baking sheets with parchment paper. Set aside.
In a large bowl with a handheld electric mixer or in the bowl of a stand mixer fitted with the paddle attachment, cream together the butter and peanut butter until smooth and creamy, 1-2 minutes.
Add the granulated sugar, brown sugar, eggs and vanilla and mix until light in color, about 2-3 minutes.
In a separate bowl, whisk together the flour, cocoa powder, baking soda, baking powder and salt. Add the dry ingredients to the wet and mix until just combined.
Drizzle in the cooled, melted chocolate while the mixer is running, and mix until just combined.
With a spoon or rubber spatula, fold in the peanut butter chips (or Reese's pieces) and chocolate chips.
Scoop heaping tablespoon-sized portions (I use my #40 cookie scoop) a few inches apart on the prepared baking sheets (roll the cookie dough into balls for a more uniform appearance to the baked cookies).
Bake for 10-11 minutes until set on the edges but still soft in the center. Remove to a wire rack to cool completely.
Notes
Flour: keep in mind, these cookies are soft and slightly puffy so it's really important not to overflour - especially if you don't want them super cakey and puffy. Using the weight amount (10 ounces for flour, 2 ounces for cocoa powder) is a great way to ensure they'll turn out just right, but if you don't have a scale, check out this post on how I measure my flour (spoiler alert: I fluff the flour really well, scoop and level).Chocolate: make sure the semisweet chocolate melted for the recipe is NOT overly hot when added to the batter. It should be lukewarm and mostly cooled without hardening.Cocoa: I suspect many different types of cocoa powder would work here: unsweetened regular, dark (like Hershey's Special Dark), or Dutch-process. Feel free to experiment!Freezing: these baked and cooled cookies freeze great.