Step 1

Prepare Your Setup: Preheat the oven to 350°F (175°C). Grease and line a 9×5-inch loaf pan with parchment paper, leaving overhang for easy removal.

Step 2

Mix Dry Ingredients: In a medium bowl, whisk together flour, cocoa powder, baking soda, and salt until well combined.

Step 3

Create the Base: In a large bowl, cream butter and sugar until light and fluffy, about 3-4 minutes. Beat in eggs one at a time, then add vanilla extract.

Step 4

Combine Wet and Dry: Alternately add the dry ingredients and buttermilk to the butter mixture, beginning and ending with dry ingredients. Mix until just combined.

Step 5

Add the Magic: Gently fold in hot fudge sauce and chocolate chips until evenly distributed throughout the batter.

Step 6

Bake to Perfection: Pour batter into the prepared pan and bake for 55-60 minutes, or until a toothpick inserted comes out with a few moist crumbs.

Step 7

Final Touches: Let cool in pan for 10 minutes, then remove to a wire rack. While still warm, drizzle with additional warmed hot fudge sauce and sprinkle with chocolate chips and nuts if desired.