Ingredients
Equipment
Method
- Preheat oven to 350°F (175°C). Don't grease baking dish—enough butter in recipe prevents sticking. Want bit of caramelization on edges.
- Open crushed pineapple and pour entire contents—fruit and juice together—into bottom of 9x13-inch baking dish. Do NOT drain. Juice absolutely essential for moisture that hydrates cake mix and creates gooey texture. Spoon to spread into relatively even layer reaching all corners.
- Open yellow cake mix and sprinkle dry mix evenly over pineapple layer, covering as much surface as possible. Do NOT stir, mix, or combine layers. Whole beauty of dump cake is keeping distinct layers that transform during baking. Get cake mix distributed evenly—large bare spots won't develop golden crust.
- Slice butter into thin pats, about ¼-inch thick. Arrange butter slices all over top of dry cake mix, distributing as evenly as can. Don't worry about covering every spot perfectly—butter melts and spreads during baking, soaking into cake mix and creating caramelized topping. More evenly distributed now = more evenly golden top.
- Bake 45-55 minutes until top is deep golden brown with darker, caramelized spots around edges. Edges should bubble enthusiastically and butter completely melted and incorporated into cake mix, creating crispy-chewy topping. If browning too quickly but edges not bubbling, loosely tent with foil last 10 minutes.
- Cool 10-15 minutes before serving. Molten hot straight from oven—will burn mouth immediately. Brief cooling lets filling thicken slightly. Scoop generous portions into bowls—rustic and gooey, not neat slices. Top with vanilla ice cream or whipped cream while warm.
Notes
Don't drain pineapple—juice essential for moisture. Draining gives dry, crumbly cake instead of gooey perfection.
Distribute butter evenly—more even coverage = more uniformly golden and caramelized topping.
Let it bubble—active bubbling around edges means pineapple juice hot enough and cake mix cooking through properly.
Serve warm, not hot—10-15 minutes to cool so don't burn, but don't let cool completely. Warm is best.
Add texture with nuts: Sprinkle ½ cup chopped pecans or walnuts over cake mix before butter for extra crunch.
Use quality cake mix—while any yellow works, better quality brands give slightly better texture.
Add coconut: Sprinkle ½ cup shredded coconut over pineapple before cake mix for tropical flavor.
Different cake flavors: Vanilla, butter pecan, or spice cake all work beautifully.
Make it nutty: Mix ½ cup chopped macadamia nuts or almonds with pineapple layer.
Add brown sugar: Sprinkle 2 tablespoons brown sugar over pineapple for extra caramelization.
Make it boozy: Add 2 tablespoons rum or coconut rum to pineapple layer.
Add cinnamon: Mix ½ teaspoon cinnamon into dry cake mix before sprinkling.
Individual servings: Divide among 6-8 ramekins, reduce baking to 25-30 minutes.
Salted butter: Works fine, adds nice sweet-salty contrast.
Fresh pineapple: Could but need to add sugar and ensure enough liquid. Canned with juice pre-sweetened with right moisture.
Called Amish dump cake: Popular in Amish/Mennonite communities—simple, use pantry staples, feed many with minimal effort. "Dump" = dump layers without mixing.
Topping dry and powdery: Didn't use enough butter or didn't distribute evenly. Every spot needs butter contact. Use slightly more next time.
Gluten-free: Yes! Use GF yellow cake mix. Everything else already GF.
Bottom watery: Added extra liquid beyond pineapple juice, oven not hot enough, or didn't bake long enough. Make sure actively bubbling before removing.
Half box cake mix: Not for 9x13 pan. Need full box for proper coverage and texture. For smaller: 8x8 pan, halve all ingredients.
Really don't stir: Correct! Layers stay completely separate. Stirring defeats entire purpose, messes up texture.
Cover with plastic wrap or foil, store room temp 1 day or refrigerate up to 4 days. Topping softens but still delicious.
Don't freeze—texture becomes soggy and unappetizing after freezing and thawing.
Reheat portions in microwave 30-60 seconds until warm. Or whole pan covered with foil at 300°F for 15-20 minutes.
Make ahead: Can assemble (through adding butter) up to 2 hours before baking. Keep room temp, bake when ready. Don't assemble too far ahead—cake mix gets soggy from pineapple juice.
Serve: Scoop warm portions into bowls—meant to be gooey and rustic. Top with vanilla ice cream or whipped cream.
Pairs with: Coffee, hot tea, cold milk. Perfect casual weeknight dessert or at potlucks.
Distribute butter evenly—more even coverage = more uniformly golden and caramelized topping.
Let it bubble—active bubbling around edges means pineapple juice hot enough and cake mix cooking through properly.
Serve warm, not hot—10-15 minutes to cool so don't burn, but don't let cool completely. Warm is best.
Add texture with nuts: Sprinkle ½ cup chopped pecans or walnuts over cake mix before butter for extra crunch.
Use quality cake mix—while any yellow works, better quality brands give slightly better texture.
Add coconut: Sprinkle ½ cup shredded coconut over pineapple before cake mix for tropical flavor.
Different cake flavors: Vanilla, butter pecan, or spice cake all work beautifully.
Make it nutty: Mix ½ cup chopped macadamia nuts or almonds with pineapple layer.
Add brown sugar: Sprinkle 2 tablespoons brown sugar over pineapple for extra caramelization.
Make it boozy: Add 2 tablespoons rum or coconut rum to pineapple layer.
Add cinnamon: Mix ½ teaspoon cinnamon into dry cake mix before sprinkling.
Individual servings: Divide among 6-8 ramekins, reduce baking to 25-30 minutes.
Salted butter: Works fine, adds nice sweet-salty contrast.
Fresh pineapple: Could but need to add sugar and ensure enough liquid. Canned with juice pre-sweetened with right moisture.
Called Amish dump cake: Popular in Amish/Mennonite communities—simple, use pantry staples, feed many with minimal effort. "Dump" = dump layers without mixing.
Topping dry and powdery: Didn't use enough butter or didn't distribute evenly. Every spot needs butter contact. Use slightly more next time.
Gluten-free: Yes! Use GF yellow cake mix. Everything else already GF.
Bottom watery: Added extra liquid beyond pineapple juice, oven not hot enough, or didn't bake long enough. Make sure actively bubbling before removing.
Half box cake mix: Not for 9x13 pan. Need full box for proper coverage and texture. For smaller: 8x8 pan, halve all ingredients.
Really don't stir: Correct! Layers stay completely separate. Stirring defeats entire purpose, messes up texture.
Cover with plastic wrap or foil, store room temp 1 day or refrigerate up to 4 days. Topping softens but still delicious.
Don't freeze—texture becomes soggy and unappetizing after freezing and thawing.
Reheat portions in microwave 30-60 seconds until warm. Or whole pan covered with foil at 300°F for 15-20 minutes.
Make ahead: Can assemble (through adding butter) up to 2 hours before baking. Keep room temp, bake when ready. Don't assemble too far ahead—cake mix gets soggy from pineapple juice.
Serve: Scoop warm portions into bowls—meant to be gooey and rustic. Top with vanilla ice cream or whipped cream.
Pairs with: Coffee, hot tea, cold milk. Perfect casual weeknight dessert or at potlucks.