2TBScocoa powder(dark and unsweetened, may substitute regular)
3TBSmini chocolate chips
Instructions
Preheat your oven to 350 degrees Fahrenheit and line one small baking sheet with parchment paper.
In a small bowl, use the back of a spoon to cream the butter, brown sugar, and sugar together until light colored and smooth.
Add egg yolk and vanilla extract and and stir well to mix evenly.
Stir in flour, cocoa powder, baking soda, and sea salt and mix well, until just combined.
Fold in mini chocolate chips.
Divide the dough in half or using a 4 TBS cookie scoop, scoop two heaping scoops of dough and place on the lined baking sheet.
Bake at 350 degrees for 10 minutes, rotating the pan halfway through to ensure even baking. The cookies should be slightly brown around the edges and puffed up in the center when done.
Allow cookies to cool on the baking sheet for several minutes before transferring to a wire rack to cool completely.
If you need to store a cookie, place it in an airtight container for 3-4 days or freeze for up to 3 months.