100% from: https://thefoodcharlatan.com/the-best-double-chocolate-cookies-recipe/ (formatted to be easier for myself to read & note modifications at the bottom)

•  1 cup salted butter, softened (2 sticks)
•  1/2 cup white sugar
•  1 cup brown sugar
•  4 ounces (2/3 cup) dark chocolate, melted
•  2 large eggs
•  4 teaspoons vanilla
•  2 cups flour
•  1 cup cocoa powder
•  1 teaspoon baking soda
•  3/4 teaspoon kosher salt
•  2 cups chocolate chips (dark!)

Make the Dough

1. Cream the butter, then the sugars together
2. Mix in melted 4oz of dark chocolate
3. Add eggs and vanilla
4. Add in dry ingredients (except choco chips). Stir with a spatula first so the stand mixer doesn’t make everything go “poof!” initially.
5. Add in chocolate chips as soon as the batter comes together, don’t overmix
6. Chill the dough for half an hour, then portion it (~60grams per ball) and fridge for another 30+ minutes, or forget in the fridge/freezer.

To Bake

1. Preheat to 350 degrees F
2. Space them ~2″ apart, and smush them slightly before baking or they’ll end up as mounds (kindof donut-like, but no hole in the middle)
3. Bake for 10-11 minutes, until soft but not shiny

Modifications

mole cookies : add 1 tsp mole spice mix