Some desserts are complicated. This one is not. This 3-ingredient lemon dump cake is sunshine on a plate—bright, tangy, sweet, and impossibly easy. There is no mixing bowl, no electric mixer, and almost no cleanup. You simply “dump” the ingredients into a baking dish, stir briefly, and bake. The result is a golden, buttery, lemon-infused dessert with a crisp, crumbly topping and a soft, gooey center. It tastes like pure summer.
This lemon dump cake is a variation of the classic dump cake that became popular in the 1970s. Traditional dump cakes use canned fruit and boxed cake mix. This version uses lemon pie filling, lemon cake mix, and melted butter. The combination creates a bright, citrusy dessert that is perfect for spring and summer gatherings, potlucks, or anytime you need a quick and cheerful treat. Serve it plain, dusted with powdered sugar, or topped with a scoop of vanilla ice cream.
Why You Will Love This Recipe
· Only Three Ingredients: Lemon pie filling, lemon cake mix, and butter.
· Ready in 5 Minutes of Prep, 40 Minutes of Baking.
· No Mixing Bowls, No Electric Mixer.
· One Dish, Minimal Cleanup.
· Bright, Tangy, Sweet, and Buttery.
· Perfect for Potlucks, BBQs, and Holidays.
· Great with Ice Cream or Whipped Cream.
· Foolproof: Hard to mess up.
Ingredients List
· 1 can (21 oz) lemon pie filling (not lemon curd)
· 1 box (15.25 oz) lemon cake mix
· ½ cup (1 stick) unsalted butter, melted
Optional:
· Powdered sugar for dusting
· Vanilla ice cream or whipped cream for serving
Step-by-Step Instructions
Step 1: Preheat and Prepare
Preheat your oven to 350°F (175°C). Lightly grease a 9×9-inch or 9×13-inch baking dish with non-stick spray or a thin layer of butter. A 9×9 dish will yield a thicker, taller cake; a 9×13 will be thinner with more crispy edges.
Step 2: Dump the Pie Filling
Pour the entire can of lemon pie filling into the prepared baking dish. Spread it into an even layer with a spatula.
Step 3: Dump the Cake Mix
Sprinkle the dry lemon cake mix evenly over the pie filling. Do not stir. Use your fingers or the back of a spoon to break up any large clumps.
Step 4: Drizzle the Butter
Pour the melted butter evenly over the dry cake mix. Try to cover as much of the surface as possible. Do not stir.
Step 5: Bake
Bake for 35 to 45 minutes, until the top is golden brown and the edges are bubbly. The cake will set as it cools.
Step 6: Cool and Serve
Let the dump cake cool for at least 15 minutes before serving. Dust with powdered sugar if desired. Serve warm or at room temperature.
Cooking Tips and Pro Tips for Best Results
· Use lemon pie filling, not lemon curd: Pie filling is thicker and holds its structure during baking. Lemon curd is thinner and may not set properly. Look for canned lemon pie filling in the baking aisle.
· Do not stir after adding the cake mix: Stirring will mix the dry cake mix into the pie filling and butter, creating a dense, cake-like texture instead of the signature crumbly topping. Dump, sprinkle, drizzle, and bake.
· Use melted butter, not softened: Melted butter soaks into the cake mix and creates the crisp, crumbly topping. Softened butter will not distribute as evenly.
· For extra lemon flavor: Add the zest of 1 lemon to the pie filling before spreading it in the dish. The zest adds a bright, fresh citrus note.
· For a nutty topping: Sprinkle ½ cup of chopped pecans or walnuts over the cake mix before adding the butter. The nuts add crunch.
· For a crispier topping: Use a 9×13-inch baking dish. The thinner layer creates more surface area for crispy, buttery topping.
Variations and Substitutions
Blueberry Lemon Dump Cake:
Use 1 can (21 oz) of blueberry pie filling instead of lemon. Sprinkle with lemon cake mix. The blueberry and lemon combination is classic and delicious.
Cherry Lemon Dump Cake:
Use 1 can (21 oz) of cherry pie filling. The sweet-tart cherries pair beautifully with the lemon cake mix.
Strawberry Lemon Dump Cake:
Use 1 can (21 oz) of strawberry pie filling. Top with lemon cake mix. This is a summer favorite.
Lemon Raspberry Dump Cake:
Spread 1 can of lemon pie filling in the dish, then scatter 1 cup of fresh or frozen raspberries over the top. Sprinkle with lemon cake mix and drizzle with butter. The raspberries add tartness and color.
Key Lime Dump Cake:
Substitute the lemon pie filling with key lime pie filling (if available) and use a white or yellow cake mix. Add 1 teaspoon of lime zest.
Gluten-Free Lemon Dump Cake:
Use a gluten-free lemon cake mix and confirm that your pie filling is gluten-free. The rest of the ingredients are naturally gluten-free.
Serving Suggestions
This lemon dump cake is delicious on its own, but these additions make it even better:
· With Vanilla Ice Cream: The classic pairing. The cold, creamy ice cream melts into the warm, tangy cake.
· With Whipped Cream: Light, airy, and not too sweet.
· With Fresh Berries: Raspberries, blueberries, or strawberries add freshness and color.
· With a Dusting of Powdered Sugar: Simple and elegant.
· With a Drizzle of Lemon Glaze: Mix ½ cup powdered sugar with 1-2 tablespoons of lemon juice. Drizzle over the cooled cake.
Pair with:
· Coffee or tea
· Lemonade or iced tea
· Champagne or prosecco (for a grown-up dessert)
Storage and Reheating Instructions
Refrigerator:
Store leftovers in an airtight container at room temperature for up to 2 days, or in the refrigerator for up to 5 days. The topping will soften over time.
Freezer:
Freeze in a freezer-safe container for up to 3 months. Thaw overnight in the refrigerator before serving.
Reheating:
· Oven: Warm at 300°F for 10-15 minutes.
· Microwave: Heat individual portions for 20-30 seconds.
Nutritional Information (Approximate, per serving – serves 9)
· Calories: 380
· Protein: 3g
· Fat: 16g
· Saturated Fat: 8g
· Carbohydrates: 58g
· Fiber: 1g
· Sugar: 38g
· Sodium: 480mg
· Vitamin C: 2% Daily Value
Frequently Asked Questions (FAQ)
1. Why is it called a “dump cake”?
The name comes from the method: you simply “dump” the ingredients into the baking dish without mixing. No bowls, no beaters, no fuss. The first dump cakes appeared on recipe cards in the 1970s, often using canned fruit and boxed cake mix.
2. Can I use a different flavor of cake mix?
Yes. White, yellow, or vanilla cake mix all work well if you cannot find lemon. The lemon flavor will be less intense. For the brightest lemon flavor, lemon cake mix is best.
3. Can I use fresh lemons instead of pie filling?
No. This recipe relies on the thickness and sweetness of canned lemon pie filling. Fresh lemon juice and zest would not provide the same structure. If you want a from-scratch lemon dessert, try a lemon bar or lemon pound cake recipe.
4. Why is my dump cake dry?
Dry dump cake usually comes from not using enough butter or baking too long. Use a full ½ cup (1 stick) of melted butter. Check for doneness at 35 minutes; the cake should be golden and bubbly but still moist underneath.
5. Can I make this in a slow cooker?
Yes. Grease the slow cooker insert. Add the pie filling, then the cake mix, then the melted butter. Cook on high for 2-3 hours or on low for 4-5 hours. The edges will be caramelized, and the center will be soft. This is a great hands-off method.
6. Can I double this recipe?
Yes. Double all ingredients and use a 9×13-inch baking dish (or a larger dish). The baking time may increase by 5-10 minutes. A 9×13 dish is ideal for a single batch; for a double batch, use a larger roasting pan or two 9×13 dishes.