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Cristina's Tunnel of Fudge Cake

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Submitted by koestr

Rich chocolate walnut tube cake with a gooey fudge “tunnel” running through the center, topped with cocoa glaze and served with fresh raspberry sauce. A showstopping Pillsbury Bake-Off classic.

YIELD

1 cake

PREP

20 min

COOK

60 min

READY

140 min

Cut into this cake and discover the surprise that made it famous: a ribbon of soft, fudgy chocolate running through the center like buried treasure.

A generous batter loaded with butter, cocoa, walnuts, and six eggs bakes into a dense, rich tube cake. The magic is in the timing. One hour in the oven creates a cakey exterior that encases a molten, fudgy tunnel in the middle.

A simple cocoa glaze drizzled on top and a bright raspberry sauce on the side turn it into something truly spectacular.

Kitchen Tips

  • Do not overbake. The fudgy tunnel only forms if you pull it at exactly one hour. Even 10 extra minutes and the center sets completely.
  • Cool in the pan for a full hour before inverting. This cake is fragile when warm and will crack if you rush it.
  • Strain the raspberry sauce through a fine mesh sieve to catch every seed. The silky texture matters.
  • Walnuts are non-negotiable. They help create the tunnel structure. Skipping them changes the chemistry of the entire cake.

Ingredients

Cake
1 ¾ 414
CUPS ML SUGAR
1 ¾ 414
CUPS ML BUTTER
softened
6 6
LARGE LARGE EGGS
2 473
CUPS ML POWDERED SUGAR
2 ¼ 532
2 473
CUPS ML WALNUTS
chopped
¾ 177
CUP ML COCOA POWDER
Glaze
¾ 177
¼ 59
CUP ML COCOA POWDER
2 30
TABLESPOONS ML MILK
Raspberry sauce
1 473
PINT ML RASPBERRIES *
2 30
TABLESPOONS ML SUGAR
1 5
TEASPOON ML LEMON JUICE

Directions

Cake - Preheat oven to 350℉ (180℃).

Butter and flour a tube pan.

In a large bowl, beat together sugar and butter with a hand mixer until light and fluffy.

Add eggs one at a time, beating well after each addition.

Gradually add powdered sugar.

By hand, stir in flour, walnuts and cocoa.

Pour into prepared pan and bake for 1 hour.

Remove from oven and cool in pan for 1 hour.

Invert onto serving plate.

Glaze - Whisk together all ingredients and drizzle over the cake.

Raspberry sauce - Place ingredients in blender and purée until smooth.

Strain to remove seeds.

Serve with cake.

* not incl. in nutrient facts Arrow up button

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Nutrition Facts

Serving Size 514g (18.1 oz)
Amount per Serving
Calories 2197 53% from fat
 % Daily Value *
Total Fat 129g 198%
Saturated Fat 57g 287%
Trans Fat 0g
Cholesterol 531mg 177%
Sodium 688mg 29%
Total Carbohydrate 83g 83%
Dietary Fiber 13g 53%
Sugars g
Protein 74g
Vitamin A 58% Vitamin C 3%
Calcium 15% Iron 53%
* based on a 2,000 calorie diet How is this calculated?
Trans-fat Free, High Fiber
 

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