Name: Hot Fudge Pudding Cake
Prep time: 10 min
Cook time: 30 min
Total time: 50 min
Ingredients: 125 g all-purpose flour; 150 g granulated sugar; 3 tablespoons unsweetened cocoa powder; 2 teaspoons baking powder; ¼ teaspoon salt; 120 ml whole milk; 45 g unsalted butter (melted); 1 teaspoon vanilla extract; 100 g granulated sugar; 100 g packed brown sugar; 25 g unsweetened cocoa powder; 300 ml hot water

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This hot fudge pudding cake is an easy self-saucing chocolate dessert made from scratch. It bakes into soft cake with warm fudge sauce underneath. The batter is mixed by hand and ready for the oven in 10 minutes.

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Hot fudge pudding cake in a glass baking dish with a spoon lifting a square, revealing rich chocolate sauce underneath

Why You'll Love Hot Fudge Pudding Cake

Makes its own sauce: The cake rises while a warm fudge sauce forms underneath.
Bakes quickly: The dessert needs only 25-30 minutes in a fan-assisted oven.
Needs no mixer: The batter and topping come together easily by hand.
Serves straight from the dish: Each spoonful includes soft cake and warm chocolate sauce.

I associate this hot fudge pudding cake with warm desserts served at family gatherings. It comes to the table in its baking dish, ready for everyone to spoon into bowls. The soft sauce reminds me of old-fashioned chocolate pudding, while the cake gives each serving more structure. I get a similar warm center from my chocolate lava mug cake, but this dessert serves eight. That relaxed serving style keeps this recipe familiar, comforting and easy to share.

I like the contrast between the soft chocolate cake and the warm fudge sauce underneath. The granulated and light brown sugars sweeten the sauce, while cocoa keeps the flavor deeply chocolatey. Pouring boiled water over the topping creates the separation, so stirring would prevent the self-saucing effect. It shares the two-layer appeal of my lemon pudding cake, but brings a deeper chocolate flavor. Unlike my 4-ingredient flourless chocolate cake, this dessert stays spoonable because the sauce settles below. The method works because the cake rises while the sauce remains underneath.

Hot fudge pudding cake in a glass baking dish with a spoon scooping rich chocolate sauce from the bottom

Key Ingredients for Hot Fudge Pudding Cake

The exact measurements are in the recipe card below.

Flour and baking powder: I use all-purpose flour for structure, while baking powder helps the cake rise above the sauce.
Unsweetened cocoa powder: I add it to both layers, giving the cake and sauce a consistent chocolate flavor.
Granulated and light brown sugar: For me, this combination gives the topping sweetness and a deeper fudge character.
Milk, butter and boiling water: I combine milk and melted butter for softness, then use hot water to create the sauce.

How to Make Hot Fudge Pudding Cake

The complete measurements are in the recipe card below.

Four-step collage showing dry ingredients mixed, liquid added, boiling water poured over the batter and hot fudge pudding cake baking.

1. Mix the dry ingredients: Whisk flour, granulated sugar, cocoa powder, baking powder, and salt in a medium bowl.

2. Make the batter: Whisk the dry ingredients together. Add the milk, melted butter and vanilla, then stir just until combined. Spread the batter evenly in the baking dish.

3. Add the topping and water: Sprinkle the cocoa and sugar topping evenly over the batter. Pour the freshly boiled water over it without stirring.

4. Bake and serve: Bake for 25-30 minutes until the top is set and slightly cracked, while the center remains soft. Rest for 10 minutes, then spoon into bowls with the sauce underneath.

Serving of hot fudge pudding cake in a white bowl with rich chocolate sauce pooled underneath

Tips for Hot Fudge Pudding Cake

Sift clumpy cocoa: Removing cocoa lumps helps the topping dissolve into a smoother fudge sauce.
Avoid overmixing: Stir the batter only until combined so the cake layer stays soft.
Distribute the topping evenly: An even cocoa and sugar layer helps the sauce form across the whole dish.
Serve from the baking dish: Scoop to the bottom so every portion includes cake and sauce.

Storage

I let leftovers cool completely, then cover the dish or transfer portions to an airtight container. They keep refrigerated for up to three days. I reheat individual servings for 20-30 seconds, until the sauce becomes warm and spoonable again.

What to Serve With Hot Fudge Pudding Cake

I serve hot fudge pudding cake warm with vanilla ice cream, which cools and softens against the sauce. Whipped cream gives a lighter finish. For a double-chocolate dessert, no-churn chocolate ice cream adds an even richer contrast.