Preheat your oven to 350 degrees F and line a 9x9 pan with parchment paper, set aside.
Using a stand mixer or electric hand mixer, cream together your condensed milk, butter, sugar, and brown sugar.
Mix in your eggs, one by one, and then your vanilla extract until combined and smooth.
In a medium bowl, whisk together your flour, cocoa powder, and salt.
Mix your flour mixture into your condensed milk mixture and mix until combined.
Spread your batter evenly into your prepared pan and top with your chocolate chips.
Bake for 40-45 minutes, until a tooth comes out mostly clean, it should still have crumbs on it.
Allow to cool, slice and enjoy!
