Hot Chocolate Pudding Cake with Molten Fudge Sauce in One Dish Tips, FAQ & printable recipe

Tips for success

Boil more water than the recipe needs and keep the kettle hot through the bake. If the sauce seems thin at the end of the bake time, the likely cause is water that had cooled below a true boil, and a five-minute extension on the bake will usually tighten it.

Serve the cake with the hot water trick in reserve but never pour extra water into the baked dish; it will only dilute the sauce.

The dusting step is not decoration for its own sake — cocoa applied to the hot, slightly tacky crust bonds to it, while cocoa on a cooled surface sits loose and blows off the first spoonful.

Dust through a sieve from a few inches up, lightly, and let the heat do the work. For the cleanest slices at the table, scoop with a large spoon in one motion straight to the dish bottom rather than nudging half-scoops around.

Variations

• Mocha pudding cake: Replace the boiling water with hot brewed coffee. The coffee deepens the chocolate without tasting strongly of coffee, and the sauce turns darker and more grown-up. Keep every other measurement the same and dust as usual.
• Cinnamon-spiced: Whisk 1/2 tsp ground cinnamon into the dry topping along with the brown sugar and cocoa. The spice blooms in the hot sauce and gives the dessert a warm, Mexican-hot-chocolate character that suits the winter table.
• Nutty crunch top: Scatter 1/3 cup chopped toasted pecans over the batter before adding the dry topping. They toast in the oven, hold their bite through the bake and add a savory edge against the sweet fudge sauce.
• Double chocolate: Fold 1/3 cup semisweet chocolate chips into the batter before spreading it in the dish. They melt into the cake layer as it bakes, so every scoop carries pockets of chocolate on top of the sauce below.

Storage and make-ahead

Fridge

Cover and refrigerate up to 3 days; the sauce firms up cold.

Freezer

Freeze covered portions up to 2 months; thaw overnight in the refrigerator before reheating.

Reheat

Microwave individual scoops 30 to 45 seconds, or the whole dish, covered, at 300°F for 15 minutes.

Cover the cooled dish tightly and refrigerate for up to three days. The sauce thickens considerably in the cold; that is normal, not a flaw. Let leftovers cool no more than two hours before they go into the refrigerator, and reheat scoops gently so the sauce loosens again.

The dry topping can be whisked together a day ahead and kept in a sealed jar at room temperature. The batter, however, should be mixed and baked immediately, because the baking powder loses lift once wet.

There is no benefit to assembling the full dish in advance; the layered effect depends on going into the oven fresh, so plan the boil of the kettle for just before assembly rather than hours ahead.

Serving ideas

Serve the cake warm, straight from the glass dish at the center of the table, with the cocoa-dusted crust broken at the last moment so the steam arrives with the first scoop.

A large spoon, dug deep, lifts cake and fudge together, which is the entire appeal. Bowls warmed briefly in the oven keep the sauce glossy on the way to the table; cold bowls set it quickly.

This dessert is rich enough to stand alone, though a cold pour alongside makes a striking contrast if one is wanted — keep any accompaniment plain so the chocolate leads. Portion generously; the dish yields eight modest servings or six confident ones, and there is very little point in being restrained with a self-saucing chocolate cake.

Frequently asked questions

Recipe card

Hot Chocolate Pudding Cake with Molten Fudge Sauce in One Dish

Prep 15 minCook 35 minRest 10 minTotal 1 hServes 8

Ingredients

• 1 cup all-purpose flour
• 1/4 cup unsweetened cocoa powder
• 3/4 cup granulated sugar
• 2 tsp baking powder
• 1/2 tsp kosher salt
• 1/2 cup whole milk
• 2 tbsp unsalted butter, melted
• 1 tsp vanilla extract
• 3/4 cup packed brown sugar
• 1/4 cup unsweetened cocoa powder
• 1 1/2 cups boiling water
• Unsweetened cocoa powder, for dusting, to taste

Instructions

1. Heat the oven to 350°F (175°C) and butter an 8-inch round glass baking dish. In a medium bowl, whisk the flour, cocoa powder, granulated sugar, baking powder and salt until no streaks remain. Pour in the milk, melted butter and vanilla, and whisk just until a smooth, thick batter forms.
2. Scrape the batter into the buttered dish and spread it level with the back of a spoon, nudging it into the corners. A small offset spatula works too. Keep the layer even, because an uneven surface bakes unevenly and the crust will crack in the wrong places.
3. Whisk the brown sugar and cocoa powder together in a small bowl, breaking up every lump of brown sugar with the back of the whisk. Lumps that survive here become hard pockets in the finished sauce, so take the extra thirty seconds now.
4. Scatter the sugar-cocoa mixture evenly over the surface of the batter, covering it completely from edge to edge. Do not stir. Resist the urge to swirl; the magic of this dessert depends on the topping staying dry on top of the wet batter until the oven does the rest.
5. Slowly pour the boiling water over the topping, aiming for the center but letting it spread naturally. The water will look like it is flooding the dish, and the batter may show through in places. That is exactly right. Do not stir, do not panic, and do not add more water.
6. Bake for 30 to 35 minutes, until the top is set and crackly and the edges bubble steadily at the rim. The center may still tremble faintly when the dish is nudged, but the surface should not look wet. Rotate the dish once halfway through for even browning.
7. Set the dish on a wire rack and dust the top lightly with cocoa powder through a fine-mesh sieve while it is still hot, so the powder clings to the warm crust. Let the cake rest for 10 minutes; the sauce beneath thickens slightly as it settles, which makes serving cleaner.
8. Serve warm, straight from the dish, scooping all the way to the bottom with a large spoon so each portion breaks through the cake layer and lifts a share of the molten fudge sauce below. The contrast of set cake over glossy sauce is the whole point, so dig deep.

Contains: gluten, milk

Estimated nutrition per serving

Calories

290

Protein

3 g

Carbohydrates

55 g

Fat

5 g

Automatic estimate from the ingredient list, not laboratory-verified.