01 -
Preheat oven to 350°F (177°C). Line a 9×13-inch baking pan with parchment paper.
02 -
In a medium bowl, whisk together flour, baking soda, and salt.
03 -
In a large mixing bowl fitted with the paddle attachment, beat butter, granulated sugar, brown sugar, and vanilla extract until fluffy, about 2 minutes.
04 -
Scrape down the sides of the bowl with a spatula, add eggs, and mix until well combined.
05 -
Add the flour mixture to the butter mixture and mix until just incorporated.
06 -
Fold in the chocolate chunks using a spatula.
07 -
Press half of the dough evenly into the prepared baking pan. Spread caramel sauce over the dough. Drop small pieces of remaining dough over the caramel layer.
08 -
Bake for 25–30 minutes, or until the center is just set.
09 -
Sprinkle with sea salt and transfer to a cooling rack using parchment paper. Allow to cool completely before cutting and serving.