Servings: 8 to 10
If you are looking for a dessert that is incredibly easy, bursting with bright, fruity flavor, and completely irresistible, this Slow Cooker 4-Ingredient Lemon Blueberry Dump Cake is exactly what you need. It features sweet, jammy wild blueberries topped with a buttery, golden lemon cake crust. It is the perfect hands-off dessert for a summer gathering, a cozy fall evening, or a simple weekend treat.
The magic of this recipe lies in the magic of the slow cooker. The frozen blueberries cook down into a rich, syrupy filling, while the dry lemon cake mix and melted butter bake into a soft, cobbler-like topping. It is sweet, tangy, and incredibly comforting.
Why This Recipe Works
This recipe relies on the convenience of boxed cake mix and frozen fruit. The frozen wild blueberries release their juices as they cook, creating a delicious, jammy base. The dry cake mix and melted butter create a topping that is crispy on the edges and soft and spoonable in the center. The slow cooker traps the moisture, ensuring the cake bakes evenly without drying out.
Ingredients
- 4 cups frozen wild blueberries (about 16 ounces)
- 1 box (15.25 ounces) lemon cake mix, dry and unprepared
- 1/2 cup granulated sugar
- 1/2 cup (1 stick) unsalted butter, melted
Directions
- Lightly coat the inside of a 4- to 6-quart slow cooker with nonstick cooking spray or a thin layer of butter to help prevent sticking and make cleanup easier.
- Pour the frozen wild blueberries straight from the bag into the bottom of the slow cooker and spread them into an even layer. Do not thaw the berries first; they should be frozen when they go in.
- Sprinkle the granulated sugar evenly over the frozen blueberries. This helps the berries get extra jammy and sweet as they cook.
- Open the box of lemon cake mix and dump the dry mix evenly over the sugared blueberries, covering them as much as possible. Do not stir; you want distinct layers so the topping bakes up like a cobbler.
- Slowly drizzle the melted butter all over the dry cake mix, trying to moisten as much of the surface as you can. It’s fine if a few dry spots remain; they’ll still bake up into a nice, slightly crunchy topping.
- Cover the slow cooker with the lid and cook on HIGH for 2 to 2 1/2 hours, or on LOW for 3 1/2 to 4 hours, until the blueberries are bubbling around the edges and the cake mix on top looks set and mostly cooked through. The center may be a little softer and more spoon-cake-like, which is perfect for this style of dessert.
- Turn off the slow cooker and let the dump cake sit, covered, for about 10 to 15 minutes to thicken slightly. This rest time helps the hot fruit settle and makes it easier to scoop.
- Spoon the warm lemon blueberry dump cake into bowls and serve as is, or top with vanilla ice cream, whipped cream, or yogurt. Store any leftovers, cooled to room temperature, in a covered container in the refrigerator for up to 3 days. Reheat gently in the microwave or on the warm setting of the slow cooker.
Tips for the Best Results
Don’t thaw the blueberries. Frozen blueberries release less liquid and hold their shape better during the long cooking time. Thawed berries can make the cake soggy.
Don’t stir the layers. Resist the urge to stir the cake mix into the blueberries. Keeping the layers distinct is what gives the dessert its signature cobbler-like texture.
Watch the cook time. Slow cookers vary, so start checking at the 2-hour mark on high. The cake is ready when the berries are bubbling and the topping looks set.
Add a little flair. A sprinkle of fresh lemon zest over the blueberries before adding the cake mix adds a bright, fresh flavor. A handful of chopped nuts or a drizzle of cream on top before serving are also delicious additions.
Let it rest. The 10 to 15 minutes of resting time after cooking allows the hot fruit to settle and the cake to thicken slightly, making it easier to scoop.
Storage and Serving
Store leftover dump cake in an airtight container in the refrigerator for up to 3 days. Reheat gently in the microwave or on the warm setting of the slow cooker. Serve it warm with a scoop of vanilla ice cream, a dollop of whipped cream, or a spoonful of yogurt.
Sweet, tangy, and completely irresistible, this Slow Cooker Lemon Blueberry Dump Cake is a fantastic recipe to keep in your back pocket for easy, no-fuss desserts.