
This decadent chocolate dump cake has been my secret weapon for last-minute dinner guests and chocolate emergencies for years. With layers of pudding, cake mix, and melty chocolate chips, it delivers maximum chocolate impact with minimal effort—perfect for when you need something impressive but don't have time for fussy techniques.
I first discovered this recipe during a blizzard when my children were begging for something sweet but I couldn't get to the store. This happy accident has since become our most requested dessert, especially when we have impromptu gatherings.
Ingredients
- Chocolate cake mix: Provides the perfect base and creates that cakey top crust
- Instant chocolate pudding: Adds a gooey middle layer that keeps everything moist
- Whole milk: Works best for richness but any milk will work
- Cocoa powder: Intensifies the chocolate flavor between layers
- Chocolate chips: Create pockets of melty goodness throughout the cake
- Optional chopped nuts: Add a wonderful textural contrast
- Mini marshmallows: Create gooey pockets reminiscent of hot chocolate
- Espresso powder: Deepens the chocolate flavor without adding coffee taste
Step-by-Step Instructions
- Preheat and Prepare:
- Heat your oven to 350°F while you lightly grease a 9×13 baking dish. Use butter or cooking spray to ensure nothing sticks. The size of the dish matters here as it creates the perfect ratio of gooey center to cakey edges.
- Make the Pudding Layer:
- Whisk together the chocolate pudding mix and milk until completely smooth with no lumps visible. Let this mixture sit for about 5 minutes until it thickens to a soft pudding consistency. This brief rest allows the pudding to develop the right texture that will form your cake's gooey center.
- Create the Base Layer:
- Sprinkle the dry cake mix evenly across the bottom of your greased baking dish. Take your time to create an even layer, breaking up any large clumps with your fingers. This dry foundation will magically transform during baking.
- Add the Pudding Layer:
- Gently pour your thickened pudding over the dry cake mix, using a spatula to spread it evenly to all corners. Try not to disturb the cake mix too much as the separation of layers creates the magic of this dessert.
- Dust with Flavor Enhancers:
- Sift the cocoa powder evenly over the pudding layer to intensify the chocolate flavor. This thin dusting creates a wonderful depth that makes the cake taste homemade rather than from a box.
- Add the Final Touches:
- Sprinkle chocolate chips and any optional add-ins evenly across the top. The chips will partially sink and create pockets of melty chocolate throughout the cake while baking. If using nuts or marshmallows, distribute them evenly for consistent texture in every bite.
- Bake to Perfection:
- Place your assembled cake in the preheated oven and bake for 30 to 35 minutes. You want the edges to be set but the center should still be slightly jiggly. For an extra gooey dessert, reduce the baking time by about 5 minutes. The cake will continue to set as it cools.
- Serve with Care:
- Allow the cake to cool for 10 to 15 minutes before serving. This brief cooling period lets the layers settle while still maintaining that warm, gooey texture that makes this dessert special.

The chocolate chips are truly the secret star of this recipe. I discovered that using a mix of semi-sweet and milk chocolate chips creates the perfect balance of rich chocolate flavor without becoming overwhelmingly sweet. My daughter now insists we make this every year for her birthday instead of traditional cake.
Storage and Reheating
This magical dessert actually improves overnight as the flavors meld together. Store leftovers covered at room temperature for up to 2 days or refrigerate for up to 5 days. The texture will firm up in the refrigerator, transforming into something closer to a rich brownie. To revive the gooey texture, microwave individual portions for 15-20 seconds or reheat larger portions in a 300°F oven for 10 minutes until just warmed through.
Delicious Variations
While the classic chocolate version is unbeatable, this versatile recipe welcomes creative adaptations. Try using vanilla cake mix with butterscotch pudding and butterscotch chips for a blondie-like version. Or combine chocolate cake mix with white chocolate pudding and raspberry jam drizzled over the pudding layer for a chocolate-raspberry sensation. During fall, spice cake mix with chocolate pudding creates a wonderful seasonal twist that pairs perfectly with coffee.
Serving Suggestions
Transform this humble dessert into a showstopper by serving it warm with a scoop of vanilla ice cream that melts into the gooey center. For dinner parties, plate individual portions and dust with powdered sugar or cocoa powder, then add a fresh raspberry and mint leaf for an elegant presentation. When serving to children, a drizzle of chocolate syrup and a few rainbow sprinkles turns this into a birthday-worthy treat that requires minimal effort.

This dessert is pure comfort and joy—a guaranteed hit every time.
Frequently Asked Questions
- → Can I use different flavors of cake mix or pudding?
Absolutely! While chocolate-on-chocolate delivers maximum richness, try vanilla cake mix with chocolate pudding or chocolate cake with butterscotch pudding for delicious variations. Just maintain the same measurements for consistent results.
- → Why is it called a 'dump cake'?
The name comes from the preparation method—ingredients are simply dumped into the baking dish in layers without traditional mixing. This creates distinct texture zones as the cake bakes: a cake-like top, pudding middle, and gooey bottom.
- → Can I make this ahead of time?
Yes! Prepare up to 24 hours ahead and refrigerate unbaked. Allow to come to room temperature before baking. Once baked, it stays good refrigerated for 3-4 days, though the texture is best on day one. Reheat individual servings for 15-20 seconds in the microwave.
- → What's the difference between a dump cake and a cobbler?
While both are easy desserts, a cobbler typically has fruit on the bottom with a biscuit-like topping. This chocolate dump cake uses pudding as the moisture source instead of fruit, creating a more cake-like, gooey result throughout.
- → Can I make this dairy-free?
Yes! Use dairy-free milk (oat or almond work well) and dairy-free chocolate chips. Just check that your cake mix and pudding mix are also dairy-free, as some brands contain milk derivatives.
- → How do I know when it's done baking?
The edges should be set with a slight crust forming, while the center remains somewhat gooey. A toothpick inserted 1-inch from the edge should come out mostly clean. For a more molten center, reduce baking time by 5 minutes.