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Desserts · Part 1 of 3: Ingredients

Easy Slow Cooker Apple Blackberry Dump Cake

A golden, bubbling apple blackberry dump cake in a black oval slow cooker on a quartz countertop.
Prep
Cook
Total
Serves
8
Includes 10 min resting

Transform simple pantry staples into a warm, fruit-filled dessert with minimal effort. This slow cooker dump cake is the perfect solution for those times when you need a crowd-pleasing treat without spending hours in the kitchen, offering a delicious combination of textures and flavors that come together perfectly in your slow cooker.

The beauty of a dump cake lies in its simplicity. By layering fruit fillings with a dry cake mix and topping it with butter, the slow cooker works its magic to create a moist, cobbler-like dessert.

This specific combination of sweet apple filling and tart blackberries creates a sophisticated contrast that is elevated by the buttery, golden crust formed as the cake bakes. It is an ideal dessert for family gatherings, potlucks, or a cozy evening at home when something sweet is required with very little cleanup involved.

Ingredients

Makes one 6-quart slow cooker · serves 8
  • 2 cans apple pie filling
  • 2 cups frozen blackberries
  • 1 box white cake mix
  • 1/2 cup unsalted butter, sliced
Contains: gluten, milk

Why this recipe works

The slow cooker method provides a gentle, consistent heat that allows the fruit to release its juices while simultaneously baking the cake mix into a tender, golden topping. Unlike oven baking, the slow cooker environment traps moisture, which ensures the cake stays soft and prevents the edges from drying out, resulting in a consistent, spoonable dessert every time.

Layering the ingredients in a specific order is crucial for the success of this dish. Placing the heavy apple filling at the bottom creates a base that prevents burning, while the cake mix on top absorbs the butter and fruit juices as they rise.

Ready to start cooking right away??? Jump to Part 2 ? Step-by-Step Method ?

This architectural approach ensures that every spoonful contains a perfect balance of gooey fruit and cake, without the need for manual mixing or complex preparation steps.

Notes and substitutions

When selecting ingredients, ensure the apple pie filling is of high quality, as it forms the primary flavor base. If the apple filling seems overly thick, it can be loosened with a tablespoon of water, though this is rarely necessary.

The choice of cake mix can be adjusted based on preference; however, a standard white or yellow cake mix provides the most neutral base to allow the fruit flavors to shine through clearly.

The slow cooker size matters for achieving the correct depth of the cake. A 6-quart oval slow cooker is ideal for this recipe. If a smaller slow cooker is used, the cake layer may be too thick, potentially leading to uneven baking.

Always ensure the butter slices are distributed evenly across the entire surface of the cake mix to facilitate uniform browning and moisture distribution throughout the cooking process.

  • white cake mix: yellow cake mix or spice cake mix for a different flavor profile
  • frozen blackberries: frozen blueberries or raspberries can be used as an alternative

Equipment

  • 6-quart slow cooker
  • knife
  • cutting board
  • serving spoon

Coming up in Part 2: the method

  1. Layering the base · 1 stepLayer the ingredients
  2. Cooking the cake · 1 stepAdd butter and cook
  3. Final rest · 1 stepFinal rest and serving

Up next · Part 2 of 3

3 steps · 3 h of cooking · what to look for at each stage

Step-by-step instructions (Part 2)