Midnight Fudge-Drenched Peanut Butter Tunnel Cake
Step-by-step instructions
- Preheat your oven to 350°F (175°C). Grease a 9×13 inch baking dish.
- In a large bowl, mix together the chocolate cake mix, water, vegetable oil, and eggs until smooth.
- In a separate bowl, combine the creamy peanut butter and powdered sugar until well mixed.
- Pour half of the chocolate cake batter into the prepared baking dish.
- Spoon the peanut butter mixture on top of the batter, spreading it evenly.
- Pour the remaining chocolate cake batter over the peanut butter layer.
- Bake in the preheated oven for 30-35 minutes, or until a toothpick inserted into the center comes out clean.
- While the cake is baking, heat the milk in a small saucepan over medium heat until it just begins to simmer.
- Remove from heat and add the chocolate chips, stirring until smooth.
- Stir in the heavy cream until well combined.
- Once the cake is done baking, poke holes all over the top with a fork.
- Pour the chocolate fudge sauce over the cake, making sure to cover it completely.
- Allow the cake to cool before serving.
Enjoy this decadent and delicious Midnight Fudge-Drenched Peanut Butter Tunnel Cake!
Best ways to enjoy it
When it comes to serving this cake, the options are endless! Slice it into generous squares and serve it with a scoop of vanilla ice cream to add a refreshing contrast. For an elegant touch, garnish with crushed peanuts or drizzle extra fudge sauce on top. Pair it with freshly brewed coffee or a tall glass of cold milk to complete the experience.
Storage and reheating tips
To keep your Midnight Fudge-Drenched Peanut Butter Tunnel Cake fresh, store it in an airtight container at room temperature for up to three days. If you want to prolong its life, wrap it tightly in plastic wrap and keep it in the freezer for up to two months. Just a quick thaw at room temperature, and you’re ready to dig back in! Always remember to observe safe food-handling practices.
Tips for success
- Make sure your eggs and other dairy ingredients are at room temperature for better blending.
- Don’t skip the step of poking holes in the cake before pouring the fudge sauce—this allows the sauce to soak in, ensuring each bite is flavored to perfection.
- Experiment with toppings! Add chopped nuts, shredded coconut, or even a sprinkle of sea salt on the fudge for a gourmet finish.
Creative twists
Feel free to get adventurous with this cake! Consider adding a layer of caramel sauce underneath the peanut butter or incorporating crushed Oreos into the chocolate cake mix for extra flavor and texture. If you’re looking for a healthier version, swap regular flour with almond flour or use a sugar substitute in the fudge sauce. The possibilities are endless, so let your creativity shine!
Common questions
How long does this cake take to prepare?
Preparation time is about 15 minutes, and you’ll spend an additional 30-35 minutes baking it, making this a quick dessert option.
Can I use a different type of cake mix?
Absolutely! Whether you prefer a gluten-free mix or a different flavor (like vanilla), feel free to substitute as you wish.
How long can I store leftovers?
Stored properly in an airtight container, this cake will last for three days at room temperature or two months in the freezer. Just ensure it’s wrapped well if freezing!
Now, you’re all set to create and savor this delicious indulgence that will surely become a favorite in your dessert repertoire! Enjoy every bite of your Midnight Fudge-Drenched Peanut Butter Tunnel Cake.

Midnight Fudge-Drenched Peanut Butter Tunnel Cake
Ingredients
Method
- Preheat your oven to 350°F (175°C). Grease a 9x13 inch baking dish.
- In a large bowl, mix together the chocolate cake mix, water, vegetable oil, and eggs until smooth.
- In a separate bowl, combine the creamy peanut butter and powdered sugar until well mixed.
- Pour half of the chocolate cake batter into the prepared baking dish.
- Spoon the peanut butter mixture on top of the batter, spreading it evenly.
- Pour the remaining chocolate cake batter over the peanut butter layer.
- Bake in the preheated oven for 30-35 minutes, or until a toothpick inserted into the center comes out clean.
- While the cake is baking, heat the milk in a small saucepan over medium heat until it just begins to simmer.
- Remove from heat and add the chocolate chips, stirring until smooth.
- Stir in the heavy cream until well combined.
- Once the cake is done baking, poke holes all over the top with a fork.
- Pour the chocolate fudge sauce over the cake, making sure to cover it completely.
- Allow the cake to cool before serving.







