1-First Step: Preparation Begin by preheating your oven to 350°F (175°C). Grease a 9×13-inch baking pan with cooking spray or butter, then dust with cocoa powder to prevent sticking. Prepare your chocolate cake mix according to the package instructions, typically combining the mix with water, oil, and eggs. Pour the batter evenly into your prepared pan.

2-Second Step: Baking Place the pan in the preheated oven and bake for 25-30 minutes, or until a toothpick inserted into the center comes out clean. While the cake is baking, you can start preparing the filling. In a medium bowl, whisk together 2 packages of instant hot chocolate mix with 4 cups of cold milk. Continue whisking for about 2 minutes until the mixture begins to thicken slightly.

3-Third Step: The Poking Technique Once the cake is done baking, remove it from the oven but let it cool in the pan for just 5-7 minutes. It should still be warm but not hot. Using the round handle of a wooden spoon, poke holes all over the cake at regular intervals, about 1 inch apart. Push the handle about three-quarters of the way through the cake, being careful not to poke all the way to the bottom.

4-Fourth Step: Adding the Filling Pour your prepared hot chocolate mixture evenly over the warm cake, making sure it fills all the holes you created. Use a spatula to gently spread the pudding, encouraging it to seep into the holes. The warmth of the cake will help absorb the pudding, creating those moist, flavorful pockets throughout. This technique is similar to other hot chocolate poke cake recipes that emphasize the importance of filling the holes thoroughly.

5-Fifth Step: Chilling Allow the cake to cool completely, then refrigerate it for at least 2 hours. This chilling period is crucial as it allows the pudding to set properly and the flavors to meld together. For the best results, refrigerate overnight, but 2 hours minimum is acceptable if you’re short on time.

6-Final Step: Topping and Serving Once the cake has chilled and the pudding is set, remove it from the refrigerator. Spread the thawed whipped topping evenly over the entire cake. Sprinkle with mini marshmallows and chocolate chips for that classic hot chocolate experience. Drizzle hot fudge sauce in a decorative pattern over the top. For an extra touch, you can also add a dusting of cocoa powder. Return the cake to the refrigerator for another 30 minutes to let the toppings set before serving.