Tunnel of Fudge Cake

Tunnel of Fudge cake was made famous by the Pillsbury Bake-Off. This version from America’s Test Kitchen is chocolatey and indulgent, as the name would suggest.

Tunnel of Fudge Cake

Hello beautiful!

This cake just screams indulgent with it’s chocolatey cake filled with a gooey underbaked center and topped with a chocolate glaze. It’s the perfect dessert to impress friends, family members, or that special someone in your life.

Tunnel of Fudge Cake

I made this cake for dinner with some friends. We all went back for seconds. As you can see in the pictures, I overbaked mine a smidge since my tunnel wasn’t quite as gooey as other pictures I’ve seen of this cake. I can tell you that I’ve made it again since taking these pictures and baked it a few minutes less and it had a more gooey-underbaked center. So my suggestion is to take the cake out a little before you think you need to.

Tunnel of Fudge Cake

I served the cake with some fresh raspberries and at the last second added some freshly whipped cream to the table as well. Even for this chocolate lover, I enjoyed the berries and cream to cut through the intense chocolateness coming from this cake.

Tunnel of Fudge Cake

I love the tip from America’s Test Kitchen to paint the inside of the bundt pan with a melted butter and cocoa mixture. Not only was it fun to do, it yielded a cake that came out of it’s pan with no issues. I’m definitely going to be using that trick for other chocolate bundt cakes in the future.

Two Years Ago: Black and Tan Brownies and Cherry M&M Chocolate Chip Oatmeal Cookies
Three Years Ago: Colorful Cumin Quinoa Salad and Black Forest Cupcakes
Four Years Ago: Chinese Restaurant Almond Cookies

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Tunnel of Fudge Cake

Tunnel of Fudge cake was made famous by the Pillsbury Bake-Off. This version from America's Test Kitchen is chocolatey and indulgent, as the name would suggest.

Yield: Serves 12-14

Ingredients:

For the Pan
1 Tbsp Dutch-processed cocoa powder
1 Tbsp unsalted butter, melted

For the Cake
1/2 cup boiling water
2 oz bittersweet chocolate, chopped
2 cups flour
3/4 cup Dutch-processed cocoa powder
2 cups powdered sugar
1 tsp salt
5 eggs, at room temperature
1 Tbsp vanilla
1 cup sugar
3/4 cup packed brown sugar
20 Tbsp unsalted butter, at room temperature

For the Glaze
3/4 cup heavy cream
1/4 cup light corn syrup
8 oz bittersweet chocolate, finely chopped
1/2 tsp vanilla

Directions:

For the Pan
Preheat the oven to 350 degF. In a small bowl, whisk together the cocoa powder and melted butter. Use a pastry brush to evenly coat the inside of a 12-cup bundt pan.

For the Cake
In a medium bowl, pour the boiling water over the chopped chocolate. Let stand for a minute, then whisk until smooth. In a medium bowl, combine the flour, cocoa powder, powdered sugar, and salt. Combine the eggs and vanilla in a liquid measuring cup and beat lightly.

In the bowl of an electric mixer, combine the granulated sugar, brown sugar, and butter. Beat on medium-high speed until light and fluffy, about 2 minutes. With the mixer on low speed, add in the egg mixture just until combined. Add the chocolate mixture and mix until incorporated. Blend in the dry ingredients until just combined.

Spread the batter into the prepared pan. Bake for about 45 minutes or until the edges of the cake begin to pull away from the pan.

Allow the cake to cool on a wire rack for 2 hours before inverting onto a cake platter. Allow to cool completely, about 2 more hours.

For the Glaze
Combine the cream, corn syrup, and chocolate in a small saucepan. Heat over medium heat, stirring frequently, until smooth. Blend in the vanilla. Set aside for about 30 minutes, until slightly thickened. Drizzle the glaze over the cake and let set for at least 10 minutes before slicing.

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3 Responses to “Easy M&M Treats”

  1. #
    1
    Claudia — December 12, 2007 at 4:12 pm

    Seriously how cute are these? They looks awesome!

  2. #
    2
    Jen — December 27, 2007 at 1:32 pm

    This is a good idea! I make the same kind of idea but with hershey’s kisses. If you are able to get the square pretzels (snyders makes them… their shape is called butter snaps or something like that) you top them with a hershey kiss. Then you pop them in the oven on 200 degrees for a few minutes. You will know they are done when the chocolate looks shiny. After that, you can either press down the kiss a bit to join it with the pretzel, or top the pretzel with another pretzel to make a pretzel and chocolate sandwich. They are yummy and super easy! 🙂

  3. #
    3
    Beth — December 24, 2019 at 10:42 am

    This is, quite possibly, the worst recipe I’ve ever made. The only redeeming quality about this is the taste.

    So, the first issue is that there was WAY too much liquid in the cake batter. This is where everything went to hell. I decided to make these in cupcake form since I didn’t have round cake pans. The cake crumbled as I attempted to remove the cupcake wrappers.

    Next, the marshmallow filling. This was literally the worst trying to put sticky filling into a crumbly cake.

    For my surviving cakes that didn’t crumble to death, I attempted to cover in ganache. The ganache was too dang thick for this delicate cake.

    So, as I sit here on Christmas eve writing this review, I have toppling, crumbly ding songs sitting in my freezer as I make my last attempt to save these monstrosities.

    Afterwards, I will promptly burn your recipe and enjoy it.

    I am sure you are a very wonderful person and meant no I’ll will, but this recipe must be destroyed.

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