Thank you so much for stopping by! Some of the best desserts are the simplest, and this Grandma’s 3-Ingredient Lemon Dump Cake proves exactly that. With only three pantry staples, you can create a warm, buttery dessert bursting with bright lemon flavor and topped with a crisp golden crust. It’s one of those old-fashioned recipes that’s been passed down through generations because it’s quick, foolproof, and absolutely delicious.

If you love easy homemade desserts, don’t forget to subscribe to our email newsletter so you never miss a new recipe!

Overview of Recipe Content

This Grandma’s 3-Ingredient Lemon Dump Cake is one of the easiest desserts you’ll ever make. There’s no mixing bowl, no electric mixer, and barely any cleanup. Simply layer the ingredients, bake, and enjoy a warm, comforting dessert that’s perfect for family dinners, potlucks, holidays, or whenever you’re craving something sweet.

Why You’ll Love This Recipe

• Only 3 ingredients
• No mixing required
• Ready with minimal prep
• Bright, fresh lemon flavor
• Crispy buttery topping
• Perfect beginner recipe
• Great for potlucks
• Budget-friendly

What It Tastes Like

Imagine sweet and tangy lemon pie filling bubbling underneath a buttery, golden cake topping with slightly crisp edges. Every spoonful is warm, comforting, and perfectly balanced between tart and sweet.

Ingredients

PIN IT

• 1 can (21 oz) lemon pie filling
• 1 box (15.25 oz) yellow cake mix
• ½ cup (113g) unsalted butter, melted

Optional Additions

• Fresh lemon zest
• Powdered sugar
• Whipped cream
• Vanilla ice cream
• Fresh blueberries
• Fresh raspberries
• Toasted coconut

Tools You’ll Need

• 9×13-inch baking dish
• Measuring cup
• Spoon
• Oven

Suggested Substitutions

• White cake mix instead of yellow
• Lemon cake mix for extra citrus flavor
• Gluten-free cake mix
• Peach or blueberry pie filling for fun variations

How to Make Grandma’s 3-Ingredient Lemon Dump Cake

PIN IT

Step 1: Prepare the Oven

Preheat your oven to 350°F (175°C).

Lightly grease a 9×13-inch baking dish.

Step 2: Add the Lemon Filling

Spread the lemon pie filling evenly across the bottom of the baking dish.

Step 3: Add the Cake Mix

Sprinkle the dry yellow cake mix evenly over the lemon filling.

Do not stir.

Step 4: Add the Butter

Drizzle the melted butter evenly across the surface, covering as much of the cake mix as possible.

Step 5: Bake

Bake for 40–45 minutes, or until the top is beautifully golden brown and the filling is bubbling around the edges.

Step 6: Cool

Allow the dump cake to cool for about 10 minutes before serving.

Serve warm with your favorite toppings.

What to Serve with Grandma’s 3-Ingredient Lemon Dump Cake

This easy dessert pairs wonderfully with:

• Vanilla ice cream
• Fresh whipped cream
• Lemon whipped cream
• Fresh strawberries
• Blueberries
• Hot tea
• Coffee
• Fresh mint leaves

Tips for Making It Perfect

• Spread the butter evenly for the crispiest topping.
• Don’t mix the layers.
• Add fresh lemon zest before baking for even brighter flavor.
• Serve warm for the best texture.
• Store leftovers chilled and reheat individual servings.

Storage Instructions

Refrigerator

Cover tightly and refrigerate for up to 5 days.

Freezer

Freeze portions for up to 2 months.

Reheating

Microwave individual servings for 20–30 seconds, or warm in a 300°F oven for about 10 minutes.

General Information

Dump cakes became popular in American kitchens during the 1960s because they required almost no preparation and used affordable pantry ingredients. Despite the simple method, they produce a delicious dessert somewhere between a cobbler, crisp, and cake. This lemon version is especially refreshing during spring and summer but is equally comforting all year long.

Frequently Asked Questions

Why is it called a dump cake?

Because the ingredients are simply “dumped” into the baking dish without mixing.

Can I use homemade lemon pie filling?

Absolutely! Homemade filling works beautifully.

Why are there dry spots on top?

Be sure to drizzle the melted butter evenly over the dry cake mix.

Can I make this ahead?

Yes! Bake it earlier in the day and gently reheat before serving.

Can I add fruit?

Definitely! Blueberries, raspberries, or strawberries pair wonderfully with lemon.

Conclusion

This Grandma’s 3-Ingredient Lemon Dump Cake is one of those timeless desserts you’ll find yourself making again and again. With just three ingredients and almost no effort, you get a warm, buttery dessert filled with bright lemon flavor that’s perfect for every occasion. Whether you’re baking for family, friends, or simply treating yourself, this recipe is guaranteed to become a favorite.

More Delicious Recipes You’ll Love

If you loved this recipe, you might also enjoy:

• Lemon Pistachio Ricotta Cloud Cake
• Lemon Cheesecake
• Honey Citrus Almond Loaf
• Almond Saffron Citrus Cake
• Incredible Blueberry Muffin Cake

Interactive Elements

Have you tried this Grandma’s 3-Ingredient Lemon Dump Cake?

⭐ Leave a review and star rating below—we’d love to hear how it turned out!

📌 Save this recipe for later on Pinterest:

Share your delicious lemon dump cake and tag us on social media—we love seeing your homemade creations!

Nutritional Information

Approximate Per Serving (12 Servings)

Nutrient	Amount
Calories	265
Protein	2g
Carbohydrates	38g
Fat	12g
Saturated Fat	7g
Unsaturated Fat	4g
Trans Fat	0g
Cholesterol	30mg
Fiber	1g
Sugar	24g
Sodium	260mg

Print