Preheat oven to 350F and line two cookie sheets with parchment papaer.
Melt the bittersweet chocolate and set it aside to cool for about 10 minutes.
In a large bowl / a bowl of a standing mixer fitted with the paddle attachment, beat the butter and sugars until fluffy and light in color.
Reduce speed to low and slowly drizzle in the molasses and melted chocolate.
Add the eggs one at a time and mix to fully incorporate.
Sift together the flour, cocoa powder baking soda, and salt into the bowl and mix until the dough comes together.
Fold in the milk chocolate chip.
Using a small or medium cookie spoon scoop the batter and place it on the pan leaving 2" space between each cookie.
Bake for 8-10 minutes remove from the oven and let sit for a few minutes before removing from the pan.