Desserts
This apple and plum upside-down cake delivers the perfect balance of caramelized fruit and buttery streusel—every slice reveals tender cake layers with bursts of juicy fruit at the bottom. The secret lies in pre-baking the fruit to create that signature caramelized base while keeping the cake moist and fluffy. I've perfected this technique after years of testing, and it never fails to impress guests with its restaurant-quality presentation.
The magic happens in the layers: thinly sliced apples and plums caramelize beautifully in the oven, releasing their natural juices that soak into the cake batter below. A thick streusel topping adds texture and a golden finish, while the cake itself remains light and tender. This recipe requires just 30 minutes of active prep and 45 minutes of baking time, making it ideal for weekend baking projects or special occasions.
What you'll end up with is a stunning dessert that looks as good as it tastes—golden streusel on top, tender cake layers, and a caramelized fruit bottom that's impossible to resist. The combination of sweet apples and plums adds depth of flavor, while the buttery streusel ties everything together. It's the kind of dessert that transforms any gathering into something memorable.
Perfect for holidays, potlucks, or as a showstopping centerpiece for dinner parties. The cake keeps well for up to three days, so you can make it ahead and enjoy it whenever the craving strikes. Let's get started on creating this classic dessert with a modern twist!
Ingredients for apple and plum upside down cake
Sweet fruit, tender cake, and buttery streusel—this upside-down cake needs just 14 simple ingredients.
| Ingredient | Amount | Notes |
|---|---|---|
| Apples 🍎 | 2 medium | Thinly sliced, mixed variety |
| Plums 🍑 | 2 medium | Thinly sliced, ripe but firm |
| Granulated Sugar 🍚 | 1 ½ cups | For fruit caramelization |
| All-Purpose Flour 🌾 | 2 ½ cups | Sifted for light texture |
| Granulated Sugar (cake) 🍚 | 1 cup | For cake batter sweetness |
| Brown Sugar 🍚 | 1 cup | Packed for streusel |
| Unsalted Butter 🧈 | 1 cup | Cold, cubed for streusel |
| Old-Fashioned Oats 🌾 | 1 cup | Rolled, not quick |
| Large Eggs 🥚 | 2 whole | Room temperature |
| Milk 🥛 | 1 cup | Whole milk preferred |
| Baking Powder 🍞 | 2 tsp | Metal container preferred |
| Ground Cinnamon 🌿 | 1 tsp | Freshly ground |
| Salt 🧂 | ½ tsp | Fine sea salt |
| Vanilla Extract 🌸 | 1 tsp | Pure vanilla |
The fruit is where the magic starts. Honeycrisp apples and Santa Rosa plums caramelize beautifully, but any firm, sweet varieties work. I grab mine from the produce section at Whole Foods when they're in season, but the regular grocery store has good options too. Look for plums that give slightly when pressed—they'll be juicy but hold their shape. Thinly slice them (about 1/8-inch thick) so they cook evenly. The sugar on top is non-negotiable—it's what creates that signature caramelized layer. Don't skip it, even if you're worried about extra sweetness. The cake batter balances everything perfectly.
No Honeycrisp? Gala or Fuji apples are great substitutes. Plums too firm? Peaches or nectarines work in a pinch (just reduce baking time by 5 minutes). Running low on oats? Crushed graham crackers add a nice crunch, though they'll be slightly sweeter. The streusel needs cold butter—don't melt it first, or you'll end up with a clumpy topping. If you're out of vanilla extract, vanilla bean paste gives even more flavor. The baking powder must be fresh—if it's more than 6 months old, toast it in the oven at 300°F for 10 minutes to revive it. And trust me on the brown sugar—pack it tightly into the measuring cup for that perfect texture.
This cake tastes even better the next day once the flavors meld. Wrap it tightly in plastic wrap and store at room temperature for up to 3 days. For longer storage, freeze individual slices wrapped in parchment for up to 3 months. The streusel stays crisp, while the cake keeps its moisture. I always make an extra pan—it disappears fast at holiday gatherings. To reheat, pop slices in the oven at 350°F for 5-10 minutes. The caramelized fruit bottom is the star, so serve it warm whenever possible.
Why You'll Love This Recipe
- No Fussy Prep: I swear by this recipe—just slice the fruit, sprinkle sugar, and bake. No peeling, no pitting, no stress. The plums and apples caramelize right in the pan, so you’re really just setting them up for success.
- Sweet-Tart Magic: That balance of juicy plums and crisp apples with a buttery crumb? It’s like autumn in a slice. Honestly, the sugar coating on the fruit turns it into little pockets of flavor—every bite has that perfect mix of tart and sweet.
- Crowd-Pleaser for Days: Bring this to a picnic, a holiday table, or just a lazy Sunday—and no one will question why you made it. The upside-down twist makes it feel special, but the simplicity keeps it effortless. (Yes, even on a Tuesday night.)
- Leftovers? Better Than New: This cake actually tastes better the next day. The fruit soaks up the syrup, and the crumb softens just enough to be dreamy. I’ve been known to bake one just to have slices waiting for breakfast—no shame.
Step-by-step instructions for apple and plum upside down cake
Here's how to create a showstopping cake with caramelized fruit at the bottom and a perfectly textured streusel top.
Prepare the Fruit and Caramelize
Peel, core, and thinly slice the 2 medium apples and 2 medium plums into ⅛-inch thick rounds. Arrange them in a single layer in a 9-inch round cake pan, overlapping slightly in concentric circles. Sprinkle the 1.5 cups granulated sugar evenly over the fruit - this will create the signature caramelized bottom.
Place the pan in the preheated oven at 350°F for 15-20 minutes until the fruit softens and the sugar melts into a syrupy glaze. Watch closely after 12 minutes - you want the fruit to be tender but not mushy, with golden caramel forming between the slices. This step is what makes upside down cakes special.
Make the Streusel Topping
In a medium bowl, combine the 1 cup brown sugar, 1 cup old-fashioned oats, 1 cup unsalted butter (cold and cubed), 1 tsp ground cinnamon, and 0.5 tsp salt. Use your fingers or a pastry cutter to work the butter into the dry ingredients until you get a crumbly, pea-sized texture with some larger pieces remaining - this creates the perfect balance of crispy and tender.
Spread the streusel mixture evenly over the caramelized fruit, pressing down gently with your fingers. The streusel should completely cover the fruit layer. Here's where the magic happens - this topping will bake into a golden, crunchy crust that contrasts beautifully with the soft cake layer.
Prepare the Cake Batter
In a large mixing bowl, whisk together the 2.5 cups all-purpose flour, 1 cup granulated sugar (cake), 2 tsp baking powder, and a pinch of salt. In a separate bowl, beat the 2 whole large eggs until frothy, then add the 1 cup milk and 1 tsp vanilla extract, whisking until smooth. Pour the wet ingredients into the dry ingredients and gently fold together just until combined - don't overmix or the cake will be dense.
The batter should be thick but pourable. Pour it carefully over the streusel layer, spreading it evenly to the edges of the pan. The batter should come about ¾ of the way up the sides of the pan, leaving room for the cake to rise. Here's the thing - don't worry if it looks like too much batter, the cake will settle slightly as it bakes.
Bake to Golden Perfection
Return the cake to the preheated 350°F oven and bake for 40-45 minutes until the top is golden brown and a toothpick inserted in the center comes out clean. The cake is done when the edges pull away slightly from the pan and the top springs back when gently pressed.
Let the cake cool in the pan for 15 minutes, then carefully invert it onto a wire rack or serving plate. The fruit layer will now be on top, beautifully caramelized and glistening. Let it cool completely before slicing - this ensures clean cuts and prevents the fruit from sticking to your knife. The contrast of warm cake with cool fruit makes each bite special.
Pro Tips For Making Apple And Plum Upside Down Cake
- Peel the Plums: I learned this the hard way—leaving skins on plums makes the cake dense and gummy. Take 5 minutes to slip off those skins before slicing; the fruit will caramelize evenly and the texture stays light.
- Prep Apples Last: Apples oxidize fast, turning your cake’s pretty fruit layer into a sad, brown mess. Slice them right before arranging on the cake batter—no soaking in lemon water needed if you’re quick about it.
- Skip the Overmixing: This isn’t the prettiest method, but it’s the tastiest. Mix the batter just until the flour disappears—overworking it makes the cake tough. Your mixer’s pulse function is your friend here.
- Bake at 325°F: I know, 325 seems slow, but trust the process. A lower temp guarantees the fruit caramelizes without burning while the cake rises evenly. If your oven runs hot, drop it to 300°F—your future self will thank you.
Storing and reheating this recipe
Room Temperature Storage
This cake stays fresh and delicious at room temperature for up to 3 days when properly stored. After cooling completely, wrap it tightly in plastic wrap or place it in an airtight container to maintain moisture. I like using clear plastic wrap first, then transferring to a ceramic cake carrier for easy serving. The streusel topping stays crisp while the cake remains tender—just like it came out of the oven. 🍎
Fridge Preservation
For longer storage, refrigerate the cake for up to 5 days. The cold temperature helps preserve the fruit's freshness and keeps the streusel from becoming too soft. I recommend slicing it before storing—this prevents the fruit from releasing too much juice, which can make the cake soggy. Wrap individual slices in parchment paper and store them in a single layer in an airtight container to maintain texture. 🥧
Freezing for Later
Freeze individual slices for up to 3 months to enjoy this cake anytime. Wrap each slice tightly in plastic wrap, then place them in a freezer-safe bag with all the air squeezed out. When ready to eat, thaw at room temperature for 1-2 hours before reheating. The texture holds up surprisingly well—just a slight softening in the streusel, which actually adds to the cozy vibe. 🧊
Reheating Secrets
For the best experience, reheat slices in a 350°F oven for 5-10 minutes—this restores the streusel's crispness and warms the cake to perfection. If you're in a hurry, use the microwave on low power (50%) for 20-30 seconds, but add a splash of water to prevent drying. The caramelized fruit bottom tastes even better warm, so I always serve it this way for special occasions. 🔥
Serving Warm Tips
Serve the cake warm straight from the oven for that restaurant-quality experience. The contrast of warm cake and cool fruit is what makes this dessert unforgettable. For extra flair, dust with powdered sugar or drizzle with warm caramel sauce just before serving. I love pairing it with a scoop of vanilla bean ice cream—the cold cream cuts through the richness beautifully. ✨
Nutrition facts
Frequently asked questions
Can I use other fruits instead of apples and plums?
This recipe works beautifully with peaches, nectarines, or pears—just reduce baking time by 5 minutes since they soften faster. For extra flavor, try cherries or berries (reduce sugar to 1 cup), but they'll need a longer pre-bake (25 minutes) to caramelize properly. The key is using firm, ripe fruit that holds its shape during baking.
Why does my upside-down cake sometimes have a dense center?
Overmixing the batter or underbaking are the most common causes. The batter should be gently folded—just until combined—to avoid developing gluten. Also, check your oven temperature with an oven thermometer (many run 25°F hotter than set). If the center stays pale, bake 5-10 minutes longer until a toothpick comes out clean. A water bath can also help with even baking.
How do I prevent the fruit from sticking to the pan?
Grease the pan thoroughly with butter or baking spray, then dust with flour before adding the fruit. For extra insurance, use a 9-inch springform pan—it's easier to invert later. Don't skip the 15-minute cooling period in the pan before flipping, or the fruit may tear. A thin layer of parchment paper under the fruit can also help with release.
Can I make this cake in a different shape?
Yes! Use a 10-inch pan for a thinner cake, or a 7-inch pan for a taller version (reduce baking time by 5-10 minutes). For a loaf pan, arrange fruit in a single layer at the bottom and bake covered with foil for the first 20 minutes to prevent over-browning. The streusel ratio stays the same—just scale the batter proportionally (about ¾ cup batter per 1-inch of pan height).
What's the best way to serve this cake?
Slice it warm with a serrated knife dipped in hot water for clean cuts. Pair with whipped cream, vanilla ice cream, or a drizzle of honey-lemon glaze. For a rustic touch, serve with a scoop of mascarpone or a dollop of clotted cream. The caramelized fruit shines best when served within 2 hours of baking, so plan ahead for gatherings!