Microwave 4 ounces of the Baker's semi-sweet chocolate in 30 second intervals, stirring after each interval, until smooth. Set aside.
Using a mixer, beat together butter, sugar, and brown sugar until light. About 3 minutes.
Beat in eggs and vanilla extract until just combined, scraping down sides with spatula as needed.
Mix in melted chocolate until combined.
In a medium sized bowl, whisk together flour, corn start, baking soda, salt and cocoa powder.
Beat flour mixture into butter/sugar mixture 1/2 cup at a time, scraping down sides of bowl as needed.
Chop 2 ounces of the Baker's semi-sweet chocolate. Stir chopped chocolate along with 1 cup of chocolate chips into dough.
Place in refrigerator for at least 2 hours.
Once ready to bake, preheat oven to 375 degrees. Line baking sheets (I prefer air bake sheets for cookies) with parchment paper or silicone mats.
Scoop dough about 1 tbsp at a time onto prepared baking sheet. Place cookies about 2 inches apart.
Gently press down dough just a pit and place 2-3 dark chocolate chips into top of dough (this makes for pretty cookies).
Bake for 12-15 minutes. Let cool on baking sheet for 1-2 minutes and then move to cooling rack to finish cooling.