This lemon dump cake is the perfect easy summer dessert - just 3 ingredients and ready in under an hour. Enjoy a buttery, tart treat that's perfect with ice cream!
5 from 3 votes
Prep Time 5 minutesmins
Cook Time 40 minutesmins
Total Time 45 minutesmins
Course Dessert
Cuisine American
Servings 12
Calories 368kcal
Ingredients
42ozcanned lemon creme pie filling(2 standard cans)
15.25ozboxed lemon cake mix
1.5sticksbutter
Instructions
Preheat oven to 375℉.
Pour lemon pie filling into a 9x13" dish. Top with cake mix (don't mix!).
Slice butter into ¼" slices. Layer this on top of the dry cake mix (again, don't mix it).
Bake at 375° for 35-40 minutes, until the top of the cake mix starts to turn golden brown.
Top with whipped cream or ice cream.
Notes
Do Not Mix: Keep the layers completely separate and avoid stirring the box mix into the pie filling so it bakes up like a crisp cobbler crust.
The Sliced Butter Trick: Layering cold, thin butter squares ensures even moisture coverage, preventing the sad, dry flour pockets that melted butter can leave behind.
Fixing Dry Spots: If you see chalky flour spots during the last 10 minutes of baking, gently pat or swirl the melted butter into them with a spoon.
Make-Ahead Option: Assemble this up to 24 hours in advance, cover tightly, and refrigerate. Just add 2 to 3 extra minutes to the bake time.
Storage Rule: Store leftovers in the fridge for up to 3 to 4 days. Reheat single portions in the microwave for 30 to 45 seconds.
Skip the Freezer:Do not freeze this dessert. The lemon filling will seep into the top layer during thawing, turning your crisp crust incredibly mushy.