Step 1: Preheat the Oven & Prepare the Loaf Pan

• Preheat your oven to 350°F (175°C).
• Grease a 9×5-inch loaf pan with butter or non-stick spray.
• Line with parchment paper for easy removal.

Step 2: Mix the Batter

• In a large mixing bowl, combine the brownie mix, eggs, oil, and water (if required by the mix instructions).
• Stir until the batter is smooth and fully combined.

Step 3: Add the Hot Fudge

• Heat the hot fudge sauce in the microwave for 15-20 seconds to soften it.
• Pour half of the brownie batter into the loaf pan.
• Drizzle half of the hot fudge sauce over the batter.
• Add the remaining brownie batter on top.
• Drizzle the rest of the hot fudge sauce over the top and swirl slightly with a knife for a marbled effect.

Step 4: Bake Until Set

• Bake for 50-60 minutes, or until a toothpick inserted near the center comes out slightly gooey (not completely dry—this bread is meant to be fudgy!).
• Let the bread cool in the pan for 15 minutes, then transfer to a wire rack.

Step 5: Slice & Enjoy!

• Slice while warm for a gooey, molten texture.
• Serve with ice cream, whipped cream, or just enjoy as is!