Midnight Peanut Butter Fudge Eruption Cake
Step-by-Step Instructions
- Preheat your oven to 350°F (175°C).
- In a large mixing bowl, whisk together the flour, cocoa powder, sugar, baking powder, baking soda, and salt.
- In another bowl, blend the milk, vegetable oil, eggs, and vanilla extract until well combined.
- Gradually incorporate the wet mixture into the dry ingredients, stirring until no lumps remain.
- Grease a 9×13 inch baking pan and pour the chocolate batter into it.
- In a small saucepan over low heat, melt the peanut butter and unsalted butter until smooth.
- Stir in the powdered sugar, 1/4 cup of milk, and an additional teaspoon of vanilla extract until fully mixed.
- Gently pour the peanut butter fudge mixture on top of the cake batter.
- Bake for 30-35 minutes, or until a toothpick comes out clean when inserted into the center.
- Allow the cake to cool completely before serving.
Best Ways to Enjoy It
Serving this cake is where you can get creative! A dusting of powdered sugar on top adds a lovely finish, while a scoop of vanilla ice cream makes for an indulgent pairing. You can also drizzle warm chocolate sauce over each slice for an extra touch or serve with fresh berries for balance.
How to Store & Freeze
For those who manage to have leftovers, keeping them fresh is key. Allow the cake to cool thoroughly, then store it in an airtight container at room temperature for up to 3 days. If you want to save it for longer, this cake freezes beautifully for up to 3 months. Just wrap it tightly in plastic wrap and aluminum foil before placing it in the freezer.
Pro Chef Tips
- To achieve a more intense chocolate flavor, use Dutch-processed cocoa powder.
- Ensure your peanut butter is at room temperature to facilitate a smooth fudge mixture.
- For a non-stick finish, consider lining your baking pan with parchment paper and greasing it lightly.
- Test your cake using multiple toothpick points, as the peanut butter fudge can make it tricky to determine doneness.
Creative Twists
Feel adventurous? Consider swapping the creamy peanut butter for crunchy for some extra texture. You could also infuse some espresso powder into the chocolate batter for a mocha twist or sprinkle chopped nuts on top of the fudge layer for added crunch.
FAQs
How long does it take to prepare and bake this cake?
The preparation time is around 15-20 minutes, and baking takes approximately 30-35 minutes, making it a quick dessert overall.
Can I substitute the vegetable oil?
Yes! You can use melted coconut oil or even unsweetened applesauce for a lighter alternative.
Is it safe to store this cake in the fridge?
While you can store it in the fridge, it’s best enjoyed at room temperature. If you prefer it cold, just allow it to sit out for a few minutes before serving.
Now that you’re all set, go ahead and indulge in this delightful Midnight Peanut Butter Fudge Eruption Cake. It’s sure to become a favorite in your dessert rotation!

Midnight Peanut Butter Fudge Eruption Cake
Ingredients
Method
- Preheat your oven to 350°F (175°C).
- In a large mixing bowl, whisk together the flour, cocoa powder, sugar, baking powder, baking soda, and salt.
- In another bowl, blend the milk, vegetable oil, eggs, and vanilla extract until well combined.
- Gradually incorporate the wet mixture into the dry ingredients, stirring until no lumps remain.
- Grease a 9x13 inch baking pan and pour the chocolate batter into it.
- In a small saucepan over low heat, melt the peanut butter and unsalted butter until smooth.
- Stir in the powdered sugar, 1/4 cup of milk, and an additional teaspoon of vanilla extract until fully mixed.
- Gently pour the peanut butter fudge mixture on top of the cake batter.
- Bake for 30-35 minutes, or until a toothpick comes out clean when inserted into the center.
- Allow the cake to cool completely before serving.







