Preheat the oven t0 350 degrees. Place cupcake liners into the mini muffin tray.
Prepare the brownie mix per instructions. Pour batter evenly into mini cupcake tray liners.
Place into the oven and bake for 13-15 minutes, or until the tester inserted into the center of a brownie comes out clean. Remove from the oven and let them cool for a few minutes before moving them to a cooling rack. Cool completely. The top of the brownie bites should have sunk in. If not, use the back of a spoon to press into the center of the brownie to make a well.
Once you are ready to serve the brownie bites, spoon a bit of caramel sauce into the well of each brownie bite. Sprinkle the top with sea salt, to taste. Serve immediately.