Preheat oven to 350 degrees.
In a mixing bowl, combine brownie mix as directed on package.
Pour brownie mix into 10in or smaller cast iron skillet and bake for 20 minutes.
Remove from oven and sprinkle chocolate chips over the top and allow to sit for 5 minutes.
Slice Reese’s Mini’s in half and set aside.
Sporadically place the Reese’s Mini’s all over the top. You can add more or less depending on your liking.
Slice and serve warm by itself or with a scoop of ice cream.