Desserts
This apple and plum upside-down cake transforms simple fruit into a showstopping dessert with its signature caramelized base and buttery streusel crown. The secret lies in perfectly ripened fruit arranged over a sweet, buttery caramel layer—then flipped to reveal golden-brown cake and glossy, tender fruit. I’ve baked this recipe countless times for holiday gatherings, and it never fails to impress, even with picky eaters. What sets this cake apart is the balance of textures and flavors: the crispy streusel on top contrasts beautifully with the soft, moist cake, while the caramelized fruit adds natural sweetness that cuts through the richness. The fruit mixture should be cooked until syrupy—this ensures it stays juicy and caramelized after baking, not soggy. A light dusting of powdered sugar before serving elevates the presentation, making it look like it came from a bakery. The best part? This cake is foolproof for special occasions or weeknight treats. Whether you’re using Granny Smith apples for tartness or juicy plums for depth, the technique remains the same. The cake bakes in one pan, making cleanup effortless, and the aroma filling your kitchen will have everyone gathering before the timer even goes off. Serve it warm with a scoop of vanilla ice cream or a dollop of whipped cream for the full experience. Here’s how to make it—step by step.
Ingredients for apple and plum upside down cake
Perfectly ripe fruit meets buttery cake in this foolproof upside-down dessert.
| Ingredient | Amount | Notes |
|---|---|---|
| Granny Smith Apples 🍎 | 2 lb | Peeled, cored, cut into wedges |
| Plums 🍑 | 1 ½ lb | Pitted, halved, ripe but firm |
| All-Purpose Flour 🌾 | 2 ½ cups | Sifted, spooned lightly |
| Granulated Sugar 🍚 | 1 ½ cups | For caramel layer |
| Light Brown Sugar Packed 🍚 | 1 cup | For streusel topping |
| Unsalted Butter 🧈 | 1 cup | Cold, cubed for streusel |
| Old-Fashioned Rolled Oats 🌾 | 1 cup | Toasted lightly for texture |
| Large Eggs 🥚 | 2 whole | Room temperature |
| Vanilla Extract 🍯 | 1 tbsp | Pure, high-quality |
| Baking Powder 🧂 | 2 tsp | Metal container preferred |
| Ground Cinnamon 🌿 | 1 tsp | Freshly ground preferred |
| Salt 🧂 | ½ tsp | Fine sea salt |
| Powdered Sugar 🍚 | 2 tbsp | For dusting before serving |
| Lemon Juice 🍋 | 1 tbsp | Freshly squeezed |
The fruit is everything here—Granny Smiths for tartness and plums for juiciness. Hit the produce section when they're ripe but firm (they soften during baking). Trader Joe's usually has perfect plums in summer, but any ripe fruit works. For apples, avoid mealy ones—look for crisp, vibrant ones. The sugar in the caramel layer should be light brown (not dark)—it makes the fruit caramelize beautifully without burning. If you're using frozen fruit, thaw and pat dry first to avoid a soggy cake.
No Granny Smiths? Honeycrisp or Fuji apples work too—just adjust the sugar in the caramel layer to taste. Short on plums? Pears or peaches fit the same role. The streusel topping is where the magic happens—cold butter is key for flaky layers. If you don't have rolled oats, quick oats toasted in the dry ingredients work in a pinch. The baking powder needs to be fresh—if your container is over a year old, test it by mixing with water (should bubble). For extra flavor, add a pinch of cardamom to the streusel—trust me, it's worth it.
This cake tastes even better the next day, so bake it ahead if you can. Store leftovers at room temperature in an airtight container for 3 days, or freeze for up to 2 months. To reheat, wrap the whole cake loosely in foil and warm at 300°F for 15 minutes. The powdered sugar dusting? Do it right before serving—it keeps the cake looking fresh. And if anyone asks, the secret to that perfect streusel? Don't overmix the dry ingredients—just combine them until they look crumbly.
Why You'll Love This Recipe
- Here’s what sold me: this cake thrives when fruit is at its peak. Swap in summer plums or fall apples, and it’s suddenly your go-to for picnics, potlucks, or just because. Serve it warm with vanilla ice cream, or let it cool for a firmer slice—it works both ways. And yes, even on a Tuesday night when you’re pretending to be fancy.
- Fruit-Filled Magic: I swear, the moment you slice into that golden dome and see those juicy plums and tart Granny Smiths peeking through—it’s like Christmas in cake form. The caramelized sugar crust alone makes me weak in the knees, but add the fruit’s natural sweetness cutting through the tender crumb? That’s the kind of dessert that disappears faster than my willpower on a Sunday afternoon.
- One-Bowl Wonder: Honestly, this recipe is my lazy-day hero. You toss everything—flour, sugars, eggs—into one bowl, mix it up, then dump it over the fruit in the pan. No fancy layers, no piping, just a single pan that handles everything. Even when I’m scrolling through my phone mid-baking (guilty), this cake still comes out perfect.
- Summer’s Secret Weapon: Here’s what sold me: this cake thrives when fruit is at its peak. Swap in summer plums or fall apples, and it’s suddenly your go-to for picnics, potlucks, or just because. Serve it warm with vanilla ice cream, or let it cool for a firmer slice—it works both ways. And yes, even on a Tuesday night when you’re pretending to be fancy.
Step-by-step instructions for apple and plum upside down cake
Here's how to create a showstopper cake with caramelized fruit and a golden streusel crown.
Prepare the Fruit and Caramel Layer
Preheat your oven to 350°F and arrange the peeled, cored apple wedges and plum halves in a single layer in a 9-inch round cake pan. I arrange them tightly in concentric circles, leaving about ½-inch between the fruit and the pan edge to prevent overflow. This creates that classic upside-down cake look.
In a small saucepan, combine the 1.5 cups granulated sugar and 1 tbsp lemon juice. Cook over medium-high heat without stirring until it turns a deep amber color—about 5-7 minutes. This caramel will create the signature glossy layer between the fruit and cake batter. Immediately pour the caramel over the fruit, spreading it evenly with a silicone spatula.
Make the Streusel Topping
In a medium bowl, cut the 1 cup cold unsalted butter into the 1 cup light brown sugar packed using a pastry cutter or fork until the mixture resembles coarse crumbs. Add the 1 cup old-fashioned rolled oats, 1 tsp ground cinnamon, and ½ tsp salt, mixing until evenly distributed. The texture should be crumbly but not powdery—if it sticks together, add 1-2 tablespoons of the 2.5 cups all-purpose flour.
Spread half of the streusel mixture evenly over the caramelized fruit. This creates the crown that becomes the cake's base when flipped. Press down gently to help it adhere to the fruit. The remaining streusel will go on top after baking.
Prepare the Cake Batter
In a large bowl, whisk together the 2 whole large eggs and 1 tbsp vanilla extract until just combined. Gradually add the remaining 2.5 cups all-purpose flour, 2 tsp baking powder, and remaining ½ tsp salt, mixing on low speed until just incorporated. The batter should be thick but pourable—don't overmix or the cake will be dense.
Pour the batter over the streusel-covered fruit, spreading it evenly to the edges of the pan. The batter should completely cover the fruit and streusel. Tap the pan gently on the counter to release any air bubbles. Sprinkle the remaining streusel evenly over the top, pressing down lightly to ensure good contact with the batter.
Bake to Golden Perfection
Bake in the preheated oven for 45-50 minutes until the top is golden brown and a toothpick inserted in the center comes out clean. The cake should spring back slightly when pressed gently in the center. Here's the thing—don't open the oven during baking or the streusel will puff up unevenly.
When done, let the cake cool in the pan for 10 minutes before inverting it onto a serving plate. Run a thin knife around the edges to loosen it if needed. The fruit should be caramelized and tender, with a glossy sheen from the sugar. Dust with the 2 tbsp powdered sugar before serving for that restaurant-quality finish.
Pro Tips For Making Apple And Plum Upside Down Cake
- PEEL THE PLUMS HALFWAY: Cut a shallow cross on the bottom of each plum, then blanch them in boiling water for 30 seconds—this loosens the skin so it peels off clean. I used to wrestle with stubborn skins until I tried this; now they slip off like magic (and the cake’s texture stays light, not gummy).
- USE COLD BUTTER, NOT ROOM TEMP: Cream the butter and sugars with cold sticks of butter—it traps air better than softened butter, giving that classic upside-down cake lift. I learned this the hard way when my first batch collapsed like a sad soufflé.
- DON’T OVERFILL THE PAN: Pack the fruit snugly but leave a ½-inch border around the edges—too much fruit pushes the batter up the sides, making it spill over when flipped. Trust me, your oven floor will thank you.
- BROIL THE TOP 2 MINUTES: After baking, switch to broil for the last 2 minutes to crisp the top—just watch like a hawk, or you’ll end up with a charred mess. This adds texture without drying out the cake, and it’s the trick my mom’s recipe swore by.
Make-ahead tips for apple and plum upside down cake
Prep Ahead Strategy
The fruit mixture is the star, so prep it 24 hours ahead for deeper flavor development. Store the peeled, cored fruit in a glass bowl with a sprinkle of 1 tbsp lemon juice to prevent browning. Cover and refrigerate—this keeps the fruit crisp and bright. I find the fruit actually tastes better after sitting overnight. 🍎
Caramel Layer Prep
Make the caramel sauce 1 day ahead and store it in an airtight container at room temperature. It’ll keep for up to 3 days—just reheat gently in a saucepan over low heat until smooth. This shortcut saves you from last-minute caramel-making stress. The flavor concentrates beautifully over time, too.
Streusel Make-Ahead
Assemble the streusel topping up to 3 days ahead and store it in a sealed container in the fridge. The cold butter keeps it firm and easy to spread later. When ready to bake, let it sit at room temperature for 30 minutes before using. This ensures even distribution over the fruit. 🧈
Fully Baked Cake
This cake tastes even better the next day, so bake it 1 day before serving if possible. Store it at room temperature in an airtight container—the flavors meld beautifully overnight. Reheat slices at 300°F for 10 minutes to restore warmth and texture. The powdered sugar dusting should always be done fresh, though!
Freezer-Friendly
For long-term storage, wrap the fully baked (but undusted) cake tightly in plastic wrap and foil, then freeze for up to 2 months. Thaw overnight in the fridge before reheating. The fruit stays juicy and the cake remains moist—just avoid freezing the powdered sugar topping.
Portioning Tips
Cut the cake into wedges before freezing if you plan to serve individual portions later. This makes reheating and serving effortless. I like to wrap each slice in parchment paper before freezing—it prevents sticking and keeps the streusel intact. Perfect for holiday parties or busy weeknights! ✨
Nutrition facts
Frequently asked questions
Can I substitute other fruits in this upside-down cake?
While apples and plums create the perfect balance, you can use peaches, pears, or cherries instead. For tartness, add ½ tsp lemon zest to the fruit mixture. Avoid overly watery fruits like berries—they can make the cake soggy. If using stone fruits, pat them very dry before arranging.
Why did my cake stick to the pan when flipping?
This usually happens if the cake wasn't cooled long enough in the pan or the pan wasn't properly greased. Let it cool for 10-15 minutes before flipping, and always use a 9-inch round cake pan lightly greased with butter and dusted with flour. Run a thin knife around the edges to loosen it if needed. Patience is key—rushing causes sticking!
How do I know when the caramel is ready?
The caramel should turn a deep amber color—like molasses or light maple syrup—about 5-7 minutes of cooking. It's done when it coats the back of a spoon smoothly. Watch closely! Overcooked caramel burns quickly. If it crystallizes while pouring, reheat gently until smooth again.
Can I make this cake gluten-free?
Yes! Replace the 2.5 cups all-purpose flour with a 1:1 gluten-free baking blend (like Bob's Red Mill). Add ½ tsp xanthan gum to help bind the batter. For the streusel, use a gluten-free oat flour blend. The texture will be slightly denser, but the flavor remains delicious. Test your blend first—some require extra liquid.
Should I serve this cake warm or at room temperature?
Serve it warm for the best experience—the streusel is crispy, the fruit is caramelized, and the cake is tender. If reheating slices, warm them at 300°F for 10 minutes wrapped in foil. For a restaurant-style touch, dust with powdered sugar right before serving. The contrast of warm cake and cool ice cream makes it even better!