Spray an 11 x 13 baking dish with nonstick spray. Set aside
In a small microwaveable bowl, melt butter (20 second intervals until melted). Set aside.
In a large bowl, stir in sugar & cocoa powder until combined
Add eggs, vanilla and butter to sugar mixture. Stir again until just combined.
Add flour to sugar and egg mixture. On top of flour, add baking powder and baking soda. With a fork, gently mix dry ingredients
Stir dry ingredients into your chocolatey mixture.
Add milk, a third at a time and stir together each time.
Pour batter into 11 x 13 sprayed or greased pan.
Sprinkle chocolate chips on top. They will sink a little when baked.
Bake for 25-30 minutes, testing for doneness (when a toothpick poked into center comes out clean).
Nutrition Disclaimer
Nutrition information is an estimate only provided as a courtesy using an ingredient database. Garnish and optional ingredients are not included in the calculations.