Lemon Dump Cake is a delightful, easy dessert that combines the tartness of lemon with the comforting familiarity of cake. It’s a no-fuss recipe that requires minimal effort but packs a punch in flavor. With just three main ingredients, you can whip up a delicious treat that’s perfect for any occasion, whether it’s a family gathering, a picnic, or simply a quiet evening at home. The appealing contrast between the creamy lemon filling and the crumbly cake topping creates a filling that everyone will love.

My first encounter with this dessert was at a potluck, and I couldn’t believe how such simple ingredients could converge into something so scrumptious. Every bite revealed a playful burst of lemony goodness, making me forget about any complicated dessert I had ever tried. What I adore most about this Lemon Dump Cake is how easily it comes together. If you’re craving something sweet but want to avoid the hassle of complex recipes, this gem is your answer!
Why You’ll Love This Recipe
- Simple & Quick: With just 5 minutes of prep time and 1 hour to bake, this dessert is a breeze to make.
- Irresistible Flavor: The combination of creamy lemon and buttery cake creates an enjoyable texture and taste.
- Eye-Catching Appeal: The golden crust with hints of bright yellow lemon filling makes it a standout on any dessert table.
- Flexible Serving: Perfect as a dessert, snack, or even breakfast treat; great for both casual and festive occasions.
- Diet-Friendly Options: Easily adapt this recipe to be gluten-free using a gluten-free cake mix.
Ingredients You’ll Need
42 oz. lemon pie filling: This bold and tangy filling is the star of the show, offering an unmistakable burst of citrus flavor. You’ll need two 21-ounce cans. For a fresher taste, you could try making your own lemon filling, though it will increase prep time.
1.5 cups yellow cake mix: This is half of a 15.25 ounce box. The cake mix provides the base, and its sweetness balances the tartness of the lemon filling. If you’re looking for alternatives, a vanilla or gluten-free cake mix can work as well.
1/2 cup salted butter: Butter adds richness and contributes to the delightful crumbly texture on top. Use high-quality salted butter for the best results. If you’re dairy-free, you can substitute with a plant-based butter.
How to Make Lemon Dump Cake
Preheat the Oven: Start by preheating your oven to 350°F (175°C). This ensures the cake bakes evenly and rises beautifully.
Prepare the Baking Dish: Lightly grease a 9×13-inch baking dish with butter or baking spray. This will help prevent sticking, making it easier to serve your cake.
Layer the Lemon Filling: Open the two cans of lemon pie filling and pour them into the bottom of the prepared baking dish. Use a spatula to smooth it out evenly across the bottom.
Sprinkle the Cake Mix: Evenly sprinkle the 1.5 cups of yellow cake mix over the lemon filling, covering it as thoroughly as possible. Don’t mix it in; you want the cake mix to remain on top.
Add the Butter: Cut the 1/2 cup of salted butter into thin slices and evenly distribute those slices over the cake mix. This step is essential for achieving that golden, crispy topping.
Bake: Place the baking dish in the preheated oven and bake for about 45-50 minutes, or until the edges are golden and bubbling, and the center looks set but slightly jiggly. You’ll know it’s ready when it smells heavenly and is lightly golden.
Cool: Once baked, let the cake cool for at least ten minutes—if you can resist the temptation! This will allow the layers to set a little before serving.
Serve and Enjoy: You can serve the Lemon Dump Cake warm or at room temperature. It pairs wonderfully with a scoop of vanilla ice cream or a dollop of whipped cream if you like a little extra indulgence.
Storing & Reheating
Store any leftover Lemon Dump Cake at room temperature for up to 2 days, covered with plastic wrap or aluminum foil to keep it fresh. If you have leftovers after that, it’s best to refrigerate them for up to a week in an airtight container. You can even freeze it for up to 3 months; just make sure to wrap it tightly to prevent freezer burn. When you’re ready to enjoy it again, reheat in the microwave for about 30 seconds to 1 minute, or warm it in a preheated oven at 350°F until heated through. Keep in mind that while the flavors will still be great, the texture may differ slightly once frozen and reheated.
Chef’s Helpful Tips
- Make sure to evenly distribute the butter slices over the cake mix for that perfect golden topping.
- Avoid over-mixing the cake mix and lemon filling; we want layers, not a blended mixture.
- If using homemade lemon filling, adjust the sugar in your cake mix to balance the flavors.
- For the best texture, use cold butter straight from the fridge for the cake topping.
- Consider adding a bit of lemon zest to the cake mix for an extra punch of flavor.
This Lemon Dump Cake not only meets the demands of a busy lifestyle but also satisfies that sweet tooth in a delightful way. It’s incredible how such simple ingredients come together to create a dish that can steal the show!

Recipe FAQs
Can I use fresh lemons instead of lemon pie filling?
Absolutely! You can make your own lemon filling by combining fresh lemon juice, sugar, cornstarch, and water. Just cook the mixture over medium heat until it’s thickened before layering it in your cake.
What can I serve with Lemon Dump Cake?
This cake pairs beautifully with whipped cream, vanilla ice cream, or even a light dusting of powdered sugar. Fresh berries also make a lovely addition for a splash of color and flavor.
How do I know when my Lemon Dump Cake is done?
The edges should be a golden brown, and the center should be set but slightly jiggly. If it looks overly liquid, give it a few more minutes but keep an eye on it.
Can I make this cake gluten-free?
Definitely! Simply replace the yellow cake mix with a gluten-free cake mix, and all other ingredients remain the same. Enjoy your gluten-free version guilt-free!
We hope this recipe inspires you to put on your apron and indulge in the zesty sweetness of Lemon Dump Cake. Get ready to impress your family and friends with this simple yet flavorful dessert!
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Lemon Dump Cake
Savor the sweet and tangy flavors of Lemon Dump Cake, an effortless dessert made with lemon pie filling, yellow cake mix, and golden butter, ideal for any occasion.
- Total Time: 6 minutes
- Yield: 8 servings 1x
Ingredients
- 42 oz. lemon pie filling (two 21-oz. cans)
- 1.5 cups yellow cake mix (this is half of a 15.25 oz box)
- 1/2 cup salted butter
Instructions
- Preheat the oven according to cake mix instructions.
- Spread the lemon pie filling evenly in a baking dish.
- Sprinkle the yellow cake mix over the lemon filling in an even layer.
- Dot the top with pieces of the salted butter.
- Bake for the time specified on the cake mix package or until golden brown, checking frequently.
Notes
Ensure the salted butter is cut into small pieces for even melting.
This cake is best served warm with whipped cream or ice cream.
Store leftovers in an airtight container at room temperature.
- Prep Time: 5 minutes
- Cook Time: 1 minutes
- Category: Desserts
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 1 slice
- Calories: 250
- Sugar: 14g
- Sodium: 320mg
- Fat: 15g
- Saturated Fat: 8g
- Unsaturated Fat: 7g
- Trans Fat: 0g
- Carbohydrates: 28g
- Fiber: <1g
- Protein: 2g
- Cholesterol: 40mg
