Apple and Plum Upside Down Cake Recipe: Caramelized Fruit Crown With Spiced Streusel

This apple and plum upside-down cake recipe transforms humble fruit into a golden, caramelized crown that becomes the star of your dessert table. The secret lies in layering thinly sliced fruit with brown sugar and butter, creating a sweet, sticky base that bakes into a crispy, fruit-filled crust. I've perfected this technique over years of baking—it's the kind of dessert that feels both nostalgic and impressively elegant, without requiring advanced skills.

The magic happens in the oven, where the fruit softens into a jammy, aromatic layer while the cake batter rises around it. A spiced streusel topping adds texture and warmth, balancing the natural sweetness of the apples and plums. What makes this recipe special is its versatility—use any combination of seasonal fruit, or even swap in pears or cherries for a different flavor profile. The result is always a showstopper that tastes even better the next day.

What you'll achieve is a cake with a perfectly caramelized fruit base, tender yet slightly crispy edges, and a moist, spiced cake that holds together beautifully when flipped. The aroma alone will have everyone gathering in the kitchen, and the visual contrast of golden streusel against the deep brown fruit crown makes it irresistible. This dessert is ideal for holidays, potlucks, or simply treating yourself to something extraordinary.

Ready in about 50 minutes, this upside-down cake requires minimal effort but delivers restaurant-quality results. The key steps—preparing the fruit, arranging it carefully in the pan, and baking at the right temperature—ensure every slice is a masterpiece. Whether you're baking for a special occasion or just craving a comforting dessert, this recipe delivers every time.

Ingredients for apple and plum upside down cake

Fifteen ingredients transform simple fruit into a stunning dessert masterpiece.

The fruit selection is everything—Honeycrisp apples stay crisp while baking, and Bing plums soften beautifully. Buy them a day ahead to let flavors develop. Whole Foods or local farmers markets have the best seasonal varieties. For a shortcut, use pre-sliced frozen fruit (thaw and pat dry). The brown sugar should be packed firmly—light brown works best for caramelization. Butter matters here too: European-style has higher fat content for richer flavor. If you can't find it, use regular unsalted butter but don't overbake.

No apples? Pears or peaches work beautifully—just adjust baking time. Plums too tart? Add 1 tbsp lemon juice to the fruit before baking. The corn syrup is non-negotiable for that perfect caramelized base—Karo is the gold standard. For a gluten-free version, swap flour for a 1:1 blend like Bob's Red Mill. The oats in the streusel should be old-fashioned, not quick—Trader Joe's sells them pre-ground if you're short on time. And yes, you can make this with just apples if plums aren't in season.

Prep the fruit first—it needs time to release juices. Line your 9-inch pan with parchment paper for easy flipping. Store any extra fruit in the fridge for 3 days or freeze for 2 months. The cake batter keeps in the fridge for 2 days if you want to prep ahead. Once baked, let it cool completely before flipping—at least 1 hour. The caramelized base hardens as it cools, making the flip easier. Serve at room temperature for the best texture contrast between the crispy base and tender cake.

Step-by-step instructions for apple and plum upside down cake

This method delivers a perfectly caramelized fruit crown with a tender, spiced cake base every time.

Preheat your oven to 350°F and arrange the 2 lb Apples (Honeycrisp or Granny Smith) and 1.5 lb Plums (Bing or Italian Prunes) on a cutting board. Peel the apples if desired, then thinly slice both fruits into ¼-inch thick rounds. Arrange the slices in concentric circles in a 9-inch cast iron skillet or oven-safe pan, slightly overlapping each piece to create a fruit crown.

In a small bowl, combine 1.5 cups Light Brown Sugar and 0.25 cup Light Corn Syrup. Pour this mixture evenly over the fruit, then dot with 0.5 cup Unsalted Butter cut into small cubes. The butter will melt into the sugar mixture as it bakes, creating a glossy caramel glaze. Let the skillet sit at room temperature while you prepare the cake batter.

In a medium bowl, blend 1 cup Old-Fashioned Oats into a fine powder using a food processor or rolling pin. This ensures an even, crumbly texture. Transfer the oat flour to a large mixing bowl and add 2.5 cups All-Purpose Flour, 2 tsp Baking Powder, 1 tsp Ground Cinnamon, 0.25 tsp Ground Nutmeg, and 0.5 tsp Salt. Whisk these dry ingredients together until fully combined.

Cut in 0.5 cup Unsalted Butter using a pastry cutter or your fingers until the mixture resembles coarse crumbs with pea-sized butter pieces remaining. This creates pockets for steam to escape, preventing a dense cake. Set the streusel aside until ready to use.

In a separate large bowl, whisk together 2 whole Large Eggs, 1 cup Granulated Sugar, and 1 tsp Vanilla Extract until pale and slightly thickened. This process incorporates air, which helps create a light cake texture. In a measuring cup, combine 0.75 cup Milk with 1 tbsp All-Purpose Flour to create a slurry, then whisk this into the egg mixture to prevent lumps.

Gradually fold the dry streusel mixture into the wet ingredients using a spatula, mixing just until combined. Avoid overmixing—you should still see streusel flecks throughout the batter. The batter will be thick and slightly crumbly, which is perfect for this upside-down technique.

Carefully transfer the prepared fruit skillet to the center of your oven rack. Spoon the cake batter evenly over the fruit, spreading it to the edges of the skillet. The batter should cover the fruit completely but not overflow. Tap the skillet gently on the counter to settle the batter and release any air bubbles.

Bake for 45-50 minutes until the cake is golden brown and a toothpick inserted into the center comes out clean. The fruit should be tender and caramelized, with a glossy glaze. If the edges brown too quickly, tent loosely with aluminum foil after 30 minutes to prevent over-browning.

Remove the skillet from the oven and let it cool for 10 minutes on a wire rack. Place a large plate over the skillet and carefully invert both together. Lift the skillet away to reveal the caramelized fruit crown on top of the cake. Let the cake cool for an additional 15 minutes before slicing to allow the fruit to set slightly.

Serve warm with a dollop of whipped cream or vanilla ice cream. The contrast between the warm, spiced cake and the cool fruit topping makes each bite irresistible. Store leftovers covered at room temperature for up to 2 days, or refrigerate for up to 3 days.

Dietary considerations for this recipe

Gluten-Free Adaptation

Swap the 2.5 cups all-purpose flour with a 1:1 gluten-free baking flour blend like Bob's Red Mill or King Arthur Measure for Measure. Replace the 1 cup oats in the streusel with 1 cup gluten-free rolled oats (blended finely). For best results, add ½ tsp xanthan gum to the dry ingredients to mimic gluten's structure. The texture will be slightly denser but equally delicious. 🌾

Dairy-Free Option

Use coconut oil instead of butter—melt ½ cup and cool before using. Replace milk with almond milk or oat milk (unsweetened). For the streusel, use ½ cup dairy-free margarine like Earth Balance or Miyoko's. The cake will still hold together beautifully, though the flavor may be slightly less rich. 🥥

Lower Sugar Version

Reduce the 1.5 cups brown sugar to 1 cup and replace with ½ cup honey or maple syrup. Cut the granulated sugar to ½ cup and add 1 tbsp monk fruit sweetener to maintain sweetness without excess calories. The fruit's natural sugars will still caramelize, just with a lighter touch. 🍯

Nut-Free Streusel

Skip the oats entirely and use 1 cup crushed cornflakes or 1 cup shredded coconut (unsweetened) for the streusel. Add ½ cup almond flour if you want extra binding. This keeps the texture crunchy while avoiding nuts—perfect for allergies or preferences. 🥥

Vegan Substitutions

Replace eggs with 2 tbsp ground flaxseed mixed with 6 tbsp water (let sit for 5 minutes). Use vegan butter like Miyoko's or Earth Balance throughout. For the milk, opt for soy or oat milk. The cake will be moist and flavorful, though slightly denser than the original. 🌱

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