Step 1: Prepare the Cake Base

1. Preheat your oven to the temperature specified on the cake mix package.
2. Grease and lightly flour a 9×13-inch baking dish to prevent sticking.
3. Prepare the chocolate cake batter according to the package instructions (combine cake mix with eggs, oil, and water).
4. Pour the batter into the prepared baking dish and bake as directed on the package. Check for doneness by inserting a toothpick in the center—it should come out clean.
5. Once baked, let the cake cool for 10-15 minutes.

Step 2: Create the Gooey Filling

1. Using the handle of a wooden spoon or a skewer, poke holes evenly across the surface of the warm cake. Make sure the holes are deep enough for the filling to see in.
2. Pour the sweetened condensed milk over the cake, allowing it to soak into the holes.
3. Next, drizzle the caramel sauce evenly over the entire cake, ensuring it fills the holes and coats the surface.

Step 3: Add the Toppings

1. Let the cake cool completely to room temperature.
2. Spread the whipped topping evenly over the cake’s surface.
3. Sprinkle the crushed toffee bits generously on top of the whipped topping.
4. Optional: Drizzle hot fudge or chocolate syrup over the toffee bits for added indulgence.

Step 4: Chill and Serve

1. Refrigerate the cake for at least 1-2 hours before serving. Chilling helps the flavors meld together and secures clean slices.
2. Slice and serve directly from the pan, or transfer to a serving platter for a more polished presentation.
3. Optional: Garnish with fresh fruit, nuts, or a pinch of sea salt for a personalized touch.