Preheat the oven to 350 degrees. Line a 9x13 baking dish with parchment paper or spray with cooking spray.
In the bowl of a stand mixer, beat together the butter and sugars until light and creamy.
Beat in the vanilla and eggs, one at a time, until thoroughly combined.
In a small bowl, combine the flour, baking soda, and salt.
Gradually add the flour mixture to the butter mixture, beating well.
Stir in the chocolate chips.
Use your hands to press half of the dough into the bottom of the baking dish. (It will be a pretty thin layer and you'll really need to press it in.)
Spread the hot fudge sauce in a thin, even layer over the cookie dough. Use just enough to completely cover the dough.
Spread the caramel sauce over the hot fudge in a thin layer, using just enough to completely cover.
Take small chunks of the remaining cookie dough and flatten them into small pieces in your hand and place each piece in a single layer over the top of the caramel. You'll need to press the pieces pretty thin in order to have enough to mostly cover the top. It's okay if there are a small gaps, the cookies will spread as they bake.
Bake for 25 - 35 minutes, checking for the doneness you prefer. (I like them a bit gooey.)