01 -
Preheat oven to 175°C and line two baking sheets with parchment paper.
02 -
Whisk together flour, cocoa powder, baking soda, and salt in a bowl; set aside.
03 -
Beat softened butter with granulated sugar and light brown sugar until light and fluffy, approximately 3 minutes.
04 -
Add the egg and creamy peanut butter to the butter and sugar mixture; mix until smooth.
05 -
Gradually add the dry ingredients into the wet mixture on low speed until just combined.
06 -
Gently fold in the semi-sweet chocolate chips to the dough.
07 -
Drop dough mounds about 5 centimeters apart onto prepared baking sheets; sprinkle with sea salt as desired.
08 -
Bake for 10 minutes or until edges are set but centers remain soft; transfer to wire racks to cool.