Hot Fudge Cake Delight

Category: Quick & Simple Sweet Treats

Hot Fudge Cake delivers a rich chocolate dessert with minimal effort. The magic happens as cocoa batter is topped with a sugar-cocoa mixture and then gently layered with boiling water. While it bakes, a luscious fudge sauce forms beneath the cakey top, resulting in a gooey center and crisp exterior. Serve warm, ideally with a scoop of vanilla ice cream for a classic finish. This dessert is straightforward to prepare, making it ideal for gatherings or weeknight indulgence. The combination of soft cake and melting chocolate sauce guarantees crowd-pleasing results with each spoonful.

A woman with a chef's hat holding a plant.
Updated on Sat, 19 Jul 2025 00:07:08 GMT
A bowl of hot fudge cake with a spoon in it. Pin
A bowl of hot fudge cake with a spoon in it. | quickdinnerfix.com

There is nothing quite like a self-saucing hot fudge cake for a bit of magic at the dinner table This decadent dessert creates a fudgy chocolate sauce under a tender chocolate cake while it bakes I have made this for potlucks holiday gatherings and weeknight treats and it always vanishes fast

The first time I served this my family scraped the pan clean before I had a chance for seconds It became our go to special treat whenever we craved something chocolaty but simple

Ingredients

  • All purpose flour: ensures a tender cake structure use fresh and unbleached for best results
  • Granulated sugar and light brown sugar: sweeten both the cake and sauce the brown sugar adds a hint of caramel flavor
  • Unsweetened cocoa powder: brings deep chocolate flavor choose a high quality dark cocoa if possible
  • Baking powder: helps the cake rise for a fluffy texture
  • Salt: sharpens the chocolate notes a fine sea salt mixes in evenly
  • Milk: acts as the liquid for a moist crumb whole milk gives rich results
  • Vegetable oil or melted butter: keeps the cake soft oil makes it extra moist butter adds flavor
  • Vanilla extract: enhances the chocolate a real vanilla extract boosts taste
  • Boiling water: is critical to create the fudgy sauce pour straight from the kettle for best effect

Step-by-Step Instructions

Mix Dry Cake Ingredients:
Whisk together the flour granulated sugar cocoa powder baking powder and salt in a medium bowl until everything is evenly blended This sets up a uniform texture
Add Wet Cake Ingredients:
Pour in the milk oil and vanilla extract Stir gently with a spatula until the batter is thick and smooth Make sure no dry bits remain for the best cake consistency
Prepare Baking Pan:
Grease a 9 inch square baking pan well to prevent sticking Then spread the chocolate batter into the pan creating an even layer all the way to the corners
Make Hot Fudge Sauce Base:
In a separate bowl combine the remaining granulated sugar light brown sugar and cocoa powder for the sauce Mix them thoroughly so there are no lumps
Add Sauce Layer to Pan:
Evenly sprinkle the dry sauce mixture directly on top of the cake batter in the pan Resist any urge to stir They must stay layered
Pour Boiling Water:
Slowly and carefully pour the just boiled water over the surface covering it all A handy trick is to pour it over the back of a metal spoon to gently disperse it and avoid disturbing the layers
Bake the Cake:
Place the pan in the oven and bake for 35 to 40 minutes Check that the top is baked and set but the bottom remains gooey as the sauce forms
Rest and Serve:
Remove from oven and allow the cake to sit for about fifteen minutes before serving Scoop portions into bowls making sure to spoon some sauce from the bottom over each piece Add ice cream on top for a heavenly finish
A spoon is in a bowl of chocolate cake. Pin
A spoon is in a bowl of chocolate cake. | quickdinnerfix.com

Brown sugar is my favorite ingredient here because it melts into the fudgy sauce underneath adding a warmth that reminds me of the cakes my grandma used to serve Nothing beats watching my family light up as they dig into the chocolatey goodness together

Storage Tips

Hot fudge cake is best enjoyed fresh and warm but you can refrigerate leftovers in a covered container for up to three days Warm individual servings in the microwave for about twenty seconds to revive the gooey sauce

Ingredient Substitutions

Feel free to use gluten free all purpose flour if needed You can swap melted butter for oil in the cake for a richer flavor and dairy free milk like almond or oat milk works nicely if you have allergies

Serving Suggestions

Pair each serving with a scoop of vanilla or coffee ice cream Whipped cream or fresh berries are wonderful toppings too Sometimes I drizzle a little extra chocolate syrup before serving for an extra indulgence

A bowl of chocolate cake with a scoop of ice cream on top. Pin
A bowl of chocolate cake with a scoop of ice cream on top. | quickdinnerfix.com

Cultural Context

This self saucing cake is a beloved American dessert tradition Its roots trace back to simple Depression era recipes where families made do with what was available The bubbling fudge sauce is always a crowd pleaser and a true taste of nostalgia

Recipe FAQs

→ How does the fudge sauce form beneath the cake?

As the cake bakes, the sugar and cocoa mixture combines with the boiling water poured on top, sinking below the batter to create a thick, warm chocolate sauce.

→ Can butter be used instead of oil in this dessert?

Yes, melted butter can replace vegetable oil for a richer flavor and slightly denser crumb.

→ What toppings work best with this chocolate cake?

A scoop of vanilla ice cream, whipped cream, or berries complement the warm, fudgy texture and deepen its sweetness.

→ How do you prevent the fudge layer from mixing with the cake?

Gently pour boiling water over the back of a spoon to avoid disturbing the layers and mixing the batter with the sugar-cocoa topping.

→ Is it possible to double the batch for more servings?

Absolutely—use a 9x13-inch baking pan and increase bake time by 5-10 minutes to ensure even cooking.

→ What gives the cake its gooey center?

The combination of cocoa, sugar, and water sinks to the bottom while baking, forming a rich sauce beneath the cake.

Hot Fudge Cake Dessert

Warm chocolate cake creates its own gooey fudge sauce as it bakes, perfect paired with ice cream.

Prep Time
10 min
Cook Time
40 min
Total Time
50 min

Category: Desserts

Skill Level: Easy

Cuisine: American

Yield: 8 Servings (1 square pan)

Dietary Preferences: Vegetarian

Ingredients

→ Cake

01 125 g all-purpose flour
02 150 g granulated sugar
03 30 g unsweetened cocoa powder
04 2 teaspoons baking powder
05 1/4 teaspoon salt
06 120 ml milk
07 60 ml vegetable oil or melted butter
08 1 teaspoon vanilla extract

→ Hot Fudge Sauce

09 100 g granulated sugar
10 110 g packed light brown sugar
11 30 g unsweetened cocoa powder
12 300 ml boiling water

Steps

Step 01

Preheat the oven to 175°C. Grease a 23 cm square baking pan and set aside.

Step 02

In a medium mixing bowl, whisk together the flour, granulated sugar, cocoa powder, baking powder, and salt until evenly blended.

Step 03

Add milk, oil or melted butter, and vanilla extract to the bowl. Stir with a spatula until the batter is smooth and free of lumps.

Step 04

Transfer the batter to the prepared baking pan and spread evenly using a spatula.

Step 05

In a separate bowl, mix the granulated sugar, light brown sugar, and cocoa powder for the sauce.

Step 06

Evenly sprinkle the dry fudge topping mixture over the entire surface of the batter. Do not stir.

Step 07

Slowly pour the boiling water over the back of a metal spoon to evenly distribute it across the batter without disturbing the layers. Do not stir.

Step 08

Place the pan in the oven and bake for 35 to 40 minutes until the surface appears set but the bottom is gooey and fudgy.

Step 09

Remove from oven and allow the cake to stand for 10 to 15 minutes. Serve warm, scooping the sauce from the bottom over each portion. Optional: top with vanilla ice cream.

Notes

  1. Pour boiling water gently over a spoon to prevent breaking the surface of the batter.
  2. For a larger batch, double the ingredients and bake in a 33 x 23 cm pan, extending bake time by 5–10 minutes.

Required Equipment

  • 23 cm square baking pan
  • Mixing bowls
  • Spatula
  • Whisk
  • Oven glove
  • Metal spoon

Allergy Information

Double-check each ingredient to identify potential allergens and consult a healthcare professional if unsure.
  • Contains gluten and may contain dairy if butter or milk is not substituted.