Butter a 12” cast iron skillet (sides and bottom) and set aside.
In a large saucepan, melt the butter over medium heat.
Remove the pan from the heat and add in the sugar and cream; stir to combine.
Return the pan to the heat and stir until smooth and the mixture is shiny.
In a separate bowl, whisk together the cocoa, baking powder, baking soda and salt.
Remove the butter sugar mixture from heat and whisk in the eggs and chocolate extract.
Stir in the oil.
Gradually whisk in the flour mixture just until combined.
Add in the chocolate chips and gently stir. You don’t want to overwork the batter.
Pour the brownie batter into the prepared skillet.
Bake for ~ 30-35 minutes or until a toothpick inserted into the center comes out with just a few moist crumbs clinging to it. The brownies will be a little gooey.
Remove the skillet from the oven and cool for 20-30 minutes if eating directly out of the pan. Cool completely on a rack if cutting and serving.
Drizzle the ganache over top and allow to cool before cutting and serving.