Slow Cooker 4-Ingredient Lemon Blueberry Dump Cake

Slow Cooker 4-Ingredient Lemon Blueberry Dump Cake (Easy, Fruity Dessert)

A slow cooker dump cake is one of the simplest desserts you can make—no mixing bowls, no fancy techniques, and very little prep. The Slow Cooker 4-Ingredient Lemon Blueberry Dump Cake is a bright, sweet-tart dessert that combines citrusy lemon flavor with juicy blueberries, all topped with a buttery cake crust that forms as it cooks.

It’s called a “dump cake” because you literally dump the ingredients into the slow cooker in layers and let the heat do the work. The result is a warm, cobbler-like dessert with a soft, cake-like top and a bubbling fruit base underneath.

Ingredients (Only 4 Needed)

• 1 box lemon cake mix
• 1 can (21 oz) blueberry pie filling
• ½ to ¾ cup unsalted butter, melted or thinly sliced
• 1–2 teaspoons lemon zest (or a splash of lemon juice for extra brightness)

That’s it—no eggs, no milk, no complicated mixing.

Equipment You’ll Need

• 4–6 quart slow cooker
• Spoon or spatula
• Microwave-safe bowl (for melting butter, if needed)
• Paper towels or a clean cloth (to catch condensation under lid, optional but helpful)

Step-by-Step Method

Step 1: Prepare the Slow Cooker

Lightly grease the inside of your slow cooker with butter or nonstick spray. This prevents sticking and makes cleanup easier later.

Step 2: Add the Blueberry Layer

Pour the blueberry pie filling directly into the bottom of the slow cooker. Spread it evenly with a spoon so it forms a consistent base layer.
This will become the juicy, jam-like foundation of your dessert.

Step 3: Add Lemon Flavor

Sprinkle the lemon zest (or a few drops of lemon juice) over the blueberry layer.
This step enhances the brightness of the fruit and balances the sweetness of the pie filling.

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