4-Ingredient Peach Dump Cake

If you have been searching for the easiest peach dessert in existence, your search ends here. This 4-Ingredient Peach Dump Cake is exactly what it sounds like — you dump four simple ingredients into a casserole dish in layers, slide it into the oven, and walk away. No mixing bowl, no hand mixer, no technique required whatsoever.

What comes out of the oven about 50 minutes later is a bubbling, golden, utterly irresistible dessert that sits somewhere between a cobbler and a cake. The bottom layer is sticky-sweet, jammy peach filling. The top is a buttery, golden baked cake crust that crisps slightly at the edges and stays soft and gooey in the center. Serve it warm with a generous dollop of whipped cream, and it will disappear before you can even put the dish on the table.

Why You’ll Love This Easy Peach Dessert

This is the recipe for anyone who loves great peach desserts but does not have hours to spend in the kitchen. The hands-on prep time is literally five minutes. You grease the dish, dump in the peach pie filling, add the drained sliced peaches, sprinkle over the dry cake mix, pour on the melted butter, and bake. That is the entire recipe.

The double-peach layer — one can of peach pie filling and one can of sliced peaches — creates a deeply fruity base that is sweet, tender, and jammy without being overly sugary. Yellow cake mix, chosen over white for its richer, butterier flavor, bakes into a golden crust on top that soaks up just enough of the peach juices from below to stay perfectly moist throughout.

This recipe also scales beautifully for a crowd, serving 12 comfortably from a single 9×13 inch dish. It is the ideal bring-along dessert for summer potlucks, family gatherings, or any occasion where you want to show up with something impressive that took almost no effort to make.

Common Mistakes — And How to Avoid Them

Mixing the layers together. The entire magic of this recipe depends on keeping the layers distinct. The peach filling and sliced peaches go on the bottom. The dry cake mix goes in an even layer on top. The butter goes over everything. Do not stir, do not fold, do not combine. The layers bake into each other naturally in the oven, creating that characteristic cobbler-cake texture.

Not covering the cake mix with butter evenly. Any patches of dry cake mix that are not reached by the melted butter will bake into a chalky, powdery layer instead of a golden crust. After pouring the butter, tilt the dish gently back and forth to help the butter spread. If you still have dry patches, use a spoon to nudge a little extra butter toward those areas.

Using a cake mix that already includes pudding. Some boxed yellow cake mixes contain added pudding, which can make the topping layer denser and more cake-like rather than crisp. A standard yellow cake mix without pudding added gives the best cobbler-style crust result.

Serving it too soon. The peach filling needs time in the oven to fully bubble and thicken. If the filling is not yet bubbling around the edges and through the cake layer when you check at 45 minutes, give it another 5 minutes. A fully bubbly filling means the peaches are hot all the way through and the starch in the pie filling has had time to thicken.

Key Ingredients and Why They Matter

Canned Peach Pie Filling (21 oz) is the heart of this recipe. It provides a pre-sweetened, pre-thickened peach base that creates the gooey, jammy bottom layer without any additional prep. Its consistency is what gives the dump cake its luscious, cobbler-like filling texture. One full can goes straight into the dish without any draining or adjustments.

Canned Sliced Peaches (15 oz, drained) are added on top of the pie filling to double the peachy intensity and add more texture. The extra peach slices give each serving more visible, tender fruit pieces and a fresher peach flavor alongside the sweeter pie filling. Drain them thoroughly before adding to prevent the filling layer from becoming too watery.

Yellow Cake Mix (15.25 oz, dry) is the topping layer and the ingredient that makes this a dump cake rather than a cobbler. Used completely dry, straight from the box, it absorbs the melted butter from above and the peach juices from below as it bakes, forming a golden, slightly crispy crust on top and a soft, moist layer just underneath. Yellow cake mix is preferred over white for its richer, more buttery flavor profile.

Unsalted Butter (3/4 cup, melted) is what activates the dry cake mix and transforms it from a powder into a baked crust. Poured evenly over the top, it soaks into the cake mix and creates a golden, caramelized surface. Unsalted butter is used here because both the cake mix and the canned peach pie filling already contain salt — additional salted butter would tip the balance too far.

How to Make 4-Ingredient Peach Dump Cake

1. Preheat the oven to 350°F. Grease a 9×13 inch casserole dish generously with softened butter or nonstick spray.
2. Add the peach pie filling. Pour the full 21-oz can of peach pie filling into the prepared dish. Use a spatula to spread it into an even layer across the entire bottom of the dish.
3. Add the sliced peaches. Drain the 15-oz can of sliced peaches well and add them on top of the pie filling. Spread into an even layer.
4. Add the dry cake mix. Open the box of yellow cake mix and sprinkle it evenly over the fruit layer in a thin, uniform coating. Do not mix it into the fruit.
5. Melt and pour the butter. Melt 3/4 cup of unsalted butter in the microwave in 20-second intervals, stirring between each interval, until completely smooth and liquid. Pour the melted butter slowly and evenly over the dry cake mix, doing your best to cover all of the surface. Tilt the dish gently to help the butter spread if needed.
6. Bake at 350°F for 45 to 50 minutes, until the peach filling is visibly bubbling at the edges and through the cake layer, and the top is deep golden brown.
7. Serve warm. Spoon into bowls and top with whipped cream or a scoop of vanilla ice cream. The gooey, layered interior is best enjoyed while the dessert is still hot from the oven.

Variations and Tips for the Best Peach Dump Cake

Use fresh or frozen peaches. When summer peaches are at peak ripeness, use 4 to 5 cups of sliced fresh peaches tossed with 1/3 cup of sugar and a tablespoon of lemon juice in place of the canned varieties. For frozen peaches, thaw completely, drain any excess liquid, and use in the same quantities.

Add spice. Sprinkle a teaspoon of cinnamon and a pinch of nutmeg over the peach layer before adding the cake mix for a warm, aromatic depth that pairs beautifully with the sweet peaches.

Make a small batch. Halve all four ingredients and bake in a 9×9 inch dish for a perfectly sized small-batch peach dessert for 4 to 6 servings.

Try white cake mix. White cake mix creates a slightly lighter, more delicate crust if you prefer a subtler flavor. The texture difference is minimal, but the flavor profile is a touch less buttery.

Top with nuts. Sprinkle 1/2 cup of chopped pecans or sliced almonds over the butter layer before baking for added crunch and a nutty richness that pairs wonderfully with the sweet peach filling.

Store and reheat. Cover the dish with aluminum foil and refrigerate for up to 5 days. Reheat individual servings in the microwave for 30 to 45 seconds, or warm the entire dish covered in foil in a 350°F oven for 10 minutes.

FAQs

Can I use fresh peaches instead of canned for this dump cake? Yes. Toss 4 to 5 cups of sliced fresh ripe peaches with 1/3 cup of granulated sugar, 1 tablespoon of lemon juice, and 1 tablespoon of cornstarch to replicate the sweetened, thickened consistency of pie filling. Layer just as you would the canned version.

Why is my dump cake still powdery on top? Patches of dry cake mix that were not fully covered by the melted butter will bake into a dry, powdery layer rather than a golden crust. Make sure the butter covers the entire surface of the cake mix, and tilt the dish to help it spread. If you notice dry patches before baking, add an extra tablespoon or two of melted butter over those areas.

Can I use a different cake mix flavor? Absolutely. Spice cake mix, butter pecan, or even white cake mix all work well as alternatives. Spice cake mix is a particularly popular variation because its warm cinnamon and nutmeg flavors complement the peaches beautifully.

How do I know when peach dump cake is done? The dump cake is ready when the peach filling is actively bubbling around the edges and up through the cake layer, and the top is deep golden brown. If the top is golden but the filling is not yet bubbling, cover loosely with foil and continue baking in 5-minute increments.