3-Ingredient Gluten Free Dump Cake
Gluten free dump cake is the easiest dessert you’ll make all week. Three ingredients, a baking dish, and a hot oven turn into a warm, buttery, fruit-filled treat with a crisp topping that nobody will believe came from a box.

The top gets golden and crackly while the fruit bubbles underneath. It’s the kind of dessert you can throw together last-minute and still feel proud to serve.
Why This Gluten Free Dump Cake Just Works
I’ve made this dump cake more times than I can count because it never fails. The gluten-free cake mix bakes into a buttery crust that tastes nothing like a box mix. The fruit filling keeps everything juicy underneath, and you don’t need a single mixing bowl.
The contrast of crisp top and soft, warm fruit is what makes it so satisfying. Plus, the recipe adapts to whatever is in your pantry, making it my go-to last-minute dessert.
Ingredients

- 1 (21 oz) can gluten-free pie filling, such as cherry, apple, or blueberry: use a thick, syrupy filling for the richest cake.
- 1 (15 oz) box gluten-free yellow cake mix: brands like King Arthur or Pillsbury gluten-free work well; the box should be around 15 ounces.
- 3/4 cup (1 1/2 sticks) unsalted butter, cold: cold butter is key for those crisp browned bits on top.
- Optional: 1/2 cup chopped pecans or walnuts: adds a nutty crunch.
- Optional: 1/2 teaspoon ground cinnamon: lovely with apple or cherry filling.
Variations / Substitutions
- Swap the fruit filling: drained canned peaches, crushed pineapple, or a mix of berries all work. The bake time stays the same.
- Dairy-free: use a solid vegan butter stick, still cold, and a dairy-free gluten-free cake mix. The topping will be a little less golden but still crisp.
- Nut-free: simply omit the nuts; the cake is delicious without them.
- Sugar-free: choose a sugar-free pie filling and a sugar-free gluten-free cake mix. The texture will be identical.
- Spice it up: add a pinch of nutmeg or cardamom along with the cinnamon for a cozier vibe.
Flaky Gluten Free Pie Crust is another reader favorite dessert worth making next.
How to Make Gluten Free Dump Cake
Step 1: Spread the Fruit and Cake Mix

Preheat the oven to 350°F (175°C). Pour the entire can of pie filling into a 9×13 inch baking dish and spread it into an even layer with a spatula. Sprinkle the dry gluten-free cake mix evenly over the top, breaking up any large lumps with your fingers. The powder will look dusty and pale, which is exactly right.
Step 2: Layer the Butter

Cut the 3/4 cup cold butter into thin pats, about 1/4 inch thick, and arrange them in a single layer over the cake mix. Leave a little space between each pat so the butter melts down into craters. Cover as much of the surface as you can; any bare dry mix will stay powdery.
Step 3: Bake Until Golden

Slide the dish into the preheated oven and bake for 45 to 55 minutes. The top should be deeply golden brown and the fruit bubbling thickly around the edges. The butter will have melted into the mix, leaving crisp, crackly patches. If you peek through the door around the 30-minute mark, you’ll see the transformation start.
Step 4: Scoop and Serve Warm

Let the dump cake rest on a wire rack for about 10 minutes, just long enough for the filling to set a bit. Then scoop generous portions into bowls while it’s still warm, making sure to get some of that buttery top with every spoonful. Serve as is or with a scoop of vanilla ice cream.
Tips for the Best Gluten Free Dump Cake
- Cold butter is non-negotiable. Soft or melted butter will sink right through and leave the top soggy instead of crisp.
- Don’t mix or stir. The layers do their own magic in the oven, so resist the urge to touch them.
- If the topping isn’t browning enough by the 55-minute mark, turn on the broiler for 1 to 2 minutes, watching closely so it doesn’t burn.
- A glass baking dish lets you see the fruit bubbling and helps gauge doneness without disturbing the crust.
- For a deeper fruit flavor, stir a teaspoon of vanilla extract into the pie filling before spreading it in the dish.
Bake times by dish size:
| Dish Size | Estimated Bake Time |
|---|---|
| 9×13 inch | 45 to 55 minutes |
| 8×8 inch | 50 to 60 minutes |
Storing Leftovers
- Refrigerate: cover tightly and store in the fridge for up to 3 days.
- Reheating: warm individual portions in the microwave for 30 to 45 seconds, or reheat the whole dish in a 300°F oven until heated through.
- Serve cold: the cake is just as good straight from the fridge, especially with a drizzle of cold cream.
What to Serve With Gluten Free Dump Cake
A scoop of vanilla ice cream is the classic move because the cold, creamy sweetness melts into the warm fruit. Whipped cream or a drizzle of caramel sauce also work beautifully. If you want something less sweet, plain Greek yogurt gives a tangy contrast that balances the rich topping.
Frequently Asked Questions
Can I use fresh fruit instead of canned pie filling?
You can, but the recipe changes a bit. Toss fresh sliced fruit with sugar, a little cornstarch, and a squeeze of lemon first, then bake. The timing may lengthen by 5 to 10 minutes as the fruit releases more liquid.
Why is my cake mix still powdery after baking?
That usually means some of the dry mix didn’t get touched by butter. Make sure the butter pats cover the surface as evenly as possible; it’s the butter melting down that hydrates the mix.
Can I use a different cake mix flavor?
Yes. Chocolate gluten-free cake mix with cherry filling is a classic combo, and spice cake mix with apple filling tastes like fall.
Do I need to grease the baking dish?
No need. The butter from the topping runs down the sides and keeps everything from sticking.

Gluten Free Dump Cake Recipe
Ingredients
Method
- Preheat oven to 350°F (175°C). Spread the pie filling in a 9×13 inch dish and sprinkle the dry cake mix evenly on top.
- Cut cold butter into thin pats and cover the cake mix surface as much as possible.
- Bake 45 to 55 minutes until the top is golden and fruit bubbles at the edges.
- Cool 10 minutes, then scoop into bowls warm and serve.
