Slow Cooker Blackberry Dump Cake
If you’re looking for an effortless dessert that tastes homemade, this Slow Cooker Blackberry Dump Cake is the perfect recipe. Made with just 4 simple ingredients, this easy crockpot dessert combines juicy frozen blackberries, buttery cake mix, and melted butter to create a warm, fruity cobbler-style treat with almost no prep.
Perfect for holidays, potlucks, family dinners, or busy weeknights, this blackberry dump cake recipe delivers sweet-tart berry flavor beneath a golden, buttery topping. Simply layer the ingredients in your slow cooker, let it cook, and enjoy a comforting dessert with minimal effort.
Why You’ll Love This Slow Cooker Blackberry Dump Cake
- Only 4 pantry-friendly ingredients
- No mixing bowls required
- Uses frozen blackberries—no thawing needed
- Perfect for holidays and family gatherings
- Easy beginner-friendly crockpot dessert
- Delicious with vanilla ice cream or whipped cream
- Minimal cleanup thanks to the slow cooker
Ingredients
- 6 cups frozen whole blackberries (28–32 ounces)
- ¾ cup granulated sugar
- 1 box (15.25 ounces) yellow cake mix
- ½ cup unsalted butter, melted
Instructions
- Lightly grease a 5 to 6-quart slow cooker with cooking spray or butter.
- Spread the frozen blackberries evenly over the bottom of the slow cooker.
- Sprinkle the sugar evenly over the berries.
- Cover the fruit with the dry yellow cake mix. Do not stir.
- Slowly drizzle the melted butter over the cake mix, covering as much as possible.
- Cover and cook on HIGH for 2½–3 hours or LOW for 4–5 hours, until the berries are bubbling and the topping is cooked through.
- Let the dessert rest for 15–20 minutes before serving.
- Spoon into bowls and top with vanilla ice cream, whipped cream, or Greek yogurt.
Recipe Tips
- Use lemon cake mix for a bright citrus flavor.
- Add chopped pecans or sliced almonds for extra crunch.
- Reduce the sugar if your berries are naturally sweet.
- A splash of fresh lemon juice enhances the blackberry flavor.
- Leftovers taste wonderful reheated the next day.
Storage
Store leftovers in an airtight container in the refrigerator for up to 4 days. Reheat individual servings in the microwave until hot. This dessert is not recommended for freezing because the topping may become soggy.
Frequently Asked Questions
Can I use fresh blackberries?
Yes. Fresh blackberries work well, though frozen berries create extra juicy filling.
Can I use another fruit?
Absolutely. Blueberries, mixed berries, raspberries, peaches, or cherries all make excellent substitutions.
Why is it called a dump cake?
Because you simply “dump” each ingredient into the slow cooker without mixing.
Can I make it ahead?
Yes. Prepare it several hours in advance and gently reheat before serving.
Benefits of This Recipe
This easy Slow Cooker Blackberry Dump Cake is ideal for busy families because it requires almost no preparation while delivering homemade flavor. Blackberries provide natural antioxidants, vitamin C, and fiber, making this dessert a delicious way to enjoy seasonal berries. Using a slow cooker also keeps the oven free and makes entertaining much easier.
