Here’s a simple, foolproof 4-ingredient Lemon Blueberry Dump Cake — perfect for baking in two glass casserole dishes 🍋🫐
🍰 4-Ingredient Lemon Blueberry Dump Cake
(Makes 2 small casseroles)
🧾 Ingredients
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2 cans (21 oz each) blueberry pie filling
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2 boxes lemon cake mix
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1½ cups unsalted butter, melted
(¾ cup per dish)
That’s it — no eggs, no mixing bowls!
🔪 Instructions
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Preheat oven to 350°F (175°C).
Lightly grease two glass casserole dishes (8×8 or similar). -
Divide blueberry filling evenly between the two dishes. Spread gently.
-
Sprinkle dry lemon cake mix evenly over the blueberries
(1 box per dish). Do not stir. -
Drizzle melted butter evenly over the cake mix, covering as much surface as possible.
-
Bake uncovered for 45–50 minutes, until the top is golden and bubbly.
-
Let cool 10–15 minutes before serving.
🍦 Optional (Still Easy!)
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Serve warm with vanilla ice cream or whipped cream
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Add fresh lemon zest on top after baking
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Sprinkle sliced almonds before baking for crunch
⚠️ Tips for Glass Dishes
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Place dishes on a baking sheet to prevent spills
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If the top browns too fast, loosely tent with foil
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Let glass cool slightly before moving to avoid cracking
If you’d like, I can also:
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Convert this to fresh blueberries
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Make it less sweet
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Adapt it for one large dish or air fryer