This 1 kg plum cake recipe delivers layers of buttery sponge infused with spiced fruit filling—perfect for celebrations or Sunday afternoons. 💛 The secret lies in a delicate balance of tender crumb and jammy sweetness, achieved through precise layering and a slow bake that develops deep caramelized flavors without drying out.
I’ve perfected this version to yield a 1 kg cake that serves 8-10, with adjustments for Bundt, round, or sheet pans depending on your preference.
The foundation is a light, airy sponge made with cake flour and a touch of cornstarch for extra tenderness, while the filling combines tart plums, cinnamon, and a splash of brandy for warmth.
The cake bakes at 325°F (163°C) for 45-55 minutes, ensuring even cooking and a moist center. This method guarantees a restaurant-quality finish without requiring advanced techniques—just patience and attention to detail.
What sets this recipe apart is the dual-layer approach: a buttery sponge base supports the jammy plum filling, which softens slightly during baking for that signature “just-set” texture.
The result is a cake with golden, crackly edges and a tender crumb that melts in your mouth, balanced by the tart-sweet fruit. Every slice reveals layers of flavor—rich, spiced, and perfectly proportioned.
Whether you’re baking for a family gathering or treating yourself to a decadent dessert, this 1 kg plum cake delivers professional results at home. The recipe scales easily for larger batches, and variations like gluten-free flour or vegan butter are included for adaptability.
Let’s get started on creating your showstopper cake.
Ingredients for 1 kg plum cake
Buttery sponge meets jammy plum filling—this 1 kg cake delivers restaurant-quality layers with minimal fuss.
| Ingredient | Amount | Notes |
|---|---|---|
| All-Purpose Flour 🌾 | 2 ½ cups | Sifted for light texture |
| Cake Flour 🌾 | 1 cup | For extra tenderness |
| Cornstarch 🌾 | 2 tbsp | Prevents gumminess |
| Unsalted Butter 🧈 | 1 cup | Room temperature, soft |
| Granulated Sugar 🍚 | 2 cups | Superfine preferred |
| Large Eggs 🥚 | 4 whole | Room temperature |
| Vanilla Extract 🌿 | 2 tsp | Pure vanilla preferred |
| Baking Powder 🧂 | 2 tsp | Aluminum-free |
| Salt 🧂 | ½ tsp | Fine sea salt |
| Plum Jam 🍑 | 1 ½ cups | Tart variety preferred |
| Ground Cinnamon 🌶️ | 1 tbsp | Freshly ground |
| Brandy 🍷 | 2 tbsp | Or substitute orange liqueur |
| Powdered Sugar 🍚 | ½ cup | For dusting |
The butter matters here—European-style or Plugrá melts beautifully for that signature tenderness. I grab mine from Whole Foods or Williams Sonoma when I can, but the regular supermarket stuff works fine if it’s unsalted. For the flour, Bob’s Red Mill cake flour is my go-to, but you can make your own by whisking 1 cup all-purpose with 2 tbsp cornstarch. The plums? Tart is key—San Marzano plum jam from Trader Joe’s has the perfect balance. If you’re using fresh plums, simmer them down with sugar and cinnamon first for a homemade filling.
No brandy? Orange liqueur or even apple juice works in a pinch—just add a pinch of cinnamon to compensate. Freshly ground cinnamon makes all the difference, but if you’ve only got the jarred stuff, toast it in a dry pan for 30 seconds first to wake up the flavor. The jam can be any fruit you love—raspberry or apricot both work beautifully. For a gluten-free version, swap the all-purpose and cake flour for a 1:1 gluten-free blend (like King Arthur’s). And if you’re avoiding dairy, vegan butter works too—just don’t overcream it.
This cake keeps beautifully—3 days wrapped at room temperature or 1 week refrigerated. For longer storage, freeze the layers separately (unfrosted) for up to 3 months. I like to assemble mine the night before and let it sit at room temp for a few hours before slicing—the filling softens just enough for that perfect texture. If you’re making it ahead for a party, cover with plastic wrap and bring to room temp before serving. Every slice reveals those golden layers—worth the wait.
Why You’ll Love This Recipe
- No-Fuss Mixing: I swear by this recipe’s dry-ingredient combo—just fold in the butter and sugar, no creaming needed. The cake flour and cornstarch team up to give you that perfect tender crumb without the fuss of sifting or overmixing.
- Butter-Sugar Magic: That rich, cold butter folded into sugar? It’s the secret weapon here. The cake doesn’t just taste good—it’s ridiculously moist, with a subtle caramelized edge that makes every slice feel like a treat.
- Weekend or Weeknight: Bake it for brunch, slice it for dessert, or pack it for lunch. The 1 kg size means you’re never stuck with crumbs—just generous portions, whether you’re feeding a crowd or saving leftovers for days.
- Budget-Friendly Luxury: You’d pay double for a store-bought plum cake, but this one costs pennies. The butter and sugar do the heavy lifting, so you’re getting restaurant-quality texture without the markup. (Yes, even on a Tuesday night.)
Step-by-step instructions for buttery plum cake layers
Layering this cake is where the magic happens—rich butter cake meets spiced plum jam in perfect harmony.
👨🍳 Step 1: Prepare the Cake Batter for Lightness
First, sift together the 2.5 cups all-purpose flour, 1 cup cake flour, 2 tbsp cornstarch, 2 tsp baking powder, and 0.5 tsp salt in a large bowl. This sifting ensures no lumps and creates a tender crumb. Set aside.
In a stand mixer fitted with the paddle attachment, beat the 1 cup room-temperature unsalted butter and 2 cups granulated sugar on medium speed for 4-5 minutes until light and fluffy. This step incorporates air—don’t skip it! Scrape down the sides of the bowl as needed to keep the mixture smooth.
Add the 4 whole large eggs, one at a time, mixing well after each addition. Then stir in the 2 tsp vanilla extract and 2 tbsp brandy. The batter should be thick but pourable. Here’s the thing—if it looks too thin, let it sit for 10 minutes before proceeding. This helps prevent a dense cake.
👨🍳 Step 2: Combine Dry Ingredients and Fold Gently
Gradually add the sifted dry ingredients to the wet mixture, mixing on low speed just until combined. Overmixing develops gluten, which makes the cake tough. Stop mixing as soon as you see no more flour streaks.
Now, fold in the 1.5 cups plum jam using a silicone spatula. Be gentle—you want the jam distributed evenly but still visible as pockets in the batter. This creates those beautiful fruit bursts in every bite. Here’s a pro tip: If the jam is too thick, warm it slightly in the microwave for 10-15 seconds to make folding easier.
🥘 Step 3: Layer and Assemble in the Pan
Preheat your oven to 350°F and grease two 9-inch round cake pans with butter or baking spray, then line the bottoms with parchment paper. Divide the batter evenly between the pans and smooth the tops with a spatula.
Here’s where the spice comes in: Sprinkle 1 tbsp ground cinnamon evenly over each layer. Then, bake for 25-30 minutes, or until a toothpick inserted in the center comes out clean. The cakes should pull away from the sides of the pan easily and have a golden top.
⏰ Step 4: Cool and Prepare the Filling
Remove the cakes from the oven and let them cool in the pans for 10 minutes. Then transfer to a wire rack to cool completely. While they’re cooling, make the filling by combining the 0.5 cup powdered sugar with 1 tbsp brandy (or orange liqueur) in a small bowl. This creates a light, glossy glaze that ties everything together.
Once the cakes are completely cool, use a serrated knife to level the tops if needed. Then, spread a thin layer of plum jam over one cake layer. Brush the edges with the brandy glaze, then place the second cake layer on top. Press gently but firmly to create a clean edge. This is the moment that matters—don’t rush it!
🍽️ Step 5: Dust and Serve for Maximum Wow Factor
Dust the entire cake generously with the remaining powdered sugar using a fine-mesh sieve. This creates that classic European cake look and adds a sweet contrast to the tart plum filling. Let the cake sit for 10 minutes before slicing—this helps the layers hold together.
Slice into 8 even portions and serve at room temperature. Each bite should deliver a perfect balance of buttery cake, spiced jam, and that delicate brandy glaze. Real talk: This cake tastes even better the next day, so make it ahead if you can. Trust me, the flavors deepen with time.
Pro Tips For Making 1 Kg Plum Cake
- Weigh Your Flours Precisely: Sifting cake flour and all-purpose flour feels like a chore, but this recipe actually needs that lightness—skip it, and your cake turns dense. Use a kitchen scale for the cornstarch too; 10g too much makes the texture gummy, while 10g too little leaves it crumbly. (I learned this after throwing out a cake that looked perfect but tasted like a brick.)
- Cream Butter and Sugar Slowly: Dumping cold butter into sugar and whipping it fast just traps air unevenly. Let the butter soften to room temp first, then mix on medium-low for 3–4 minutes until the sugar just dissolves—no streaks, no butter lumps. High speed now means gluten overdevelopment later, and nobody wants a tough plum cake.
- Don’t Overmix the Batter: The moment you fold in the plums, stop mixing after 10–12 strokes. Overworking the batter glues the flour together, and your cake will either collapse or turn out like a sad sponge. Use a spatula to gently fold—just until the fruit is coated. (Yes, it’ll look lumpy, but that’s how you get a tender crumb.)
- Bake Until Internal Temp Hits 95°C: The recipe might say “golden brown,” but that’s vague. A toothpick with moist crumbs (not wet batter) is better—but for plum cake, aim for 95°C internal temp. Pull it out too soon, and the center stays doughy; leave it too long, and the top dries out. A thermometer takes 30 seconds and saves you from guesswork.
Essential equipment for great 1 kg plum cake
Stand Mixer Essentials
Your stand mixer is the workhorse of this recipe—KitchenAid Artisan Series or Cuisinart Precision models handle the heavy creaming of butter and sugar beautifully. The paddle attachment is non-negotiable for this step, as it incorporates air efficiently.
If you’re using a hand mixer, work in 2-minute bursts to avoid overheating the butter. 🌡️
Precision Measuring Tools
Invest in a digital kitchen scale (like OXO Good Grips) for accurate measurements—especially for flour and sugar. The cake’s tenderness relies on precise ratios. For jam, use a liquid measuring cup to ensure you hit the 1.5 cups mark exactly.
A fine-mesh sieve (I love the Norpro Stainless Steel) is also essential for sifting dry ingredients smoothly.
Heat-Resistant Pan Set
Use two 9-inch round cake pans with removable bottoms (like Wilton Perfect Results) for even baking and easy release. If you’re using a Bundt pan, choose one with a non-stick coating (such as Nordic Ware) to prevent sticking.
Always grease pans with butter or baking spray—I prefer Baker’s Joy for its even distribution.
Cooling Rack & Spatulas
A wire cooling rack (like OXO Good Grips) is a must for even cooling—never let cakes sit on a damp surface. For assembling, a flexible silicone spatula (I use Epicurean) helps spread the jam evenly without tearing the layers.
A serrated knife (such as Mercer Culinary) is perfect for leveling the tops before dusting.
Oven Thermometer
Oven temperatures can vary—I use a Taylor Precision Oven Thermometer to confirm your oven hits 350°F accurately. This ensures the cake bakes evenly and avoids overbrowning. If your oven runs hot, reduce the temperature by 25°F and add 5-10 minutes to the bake time.
Fine-Mesh Sieve
For that restaurant-quality dusting, a fine-mesh sieve (like Norpro) ensures powdered sugar adheres evenly. Shake gently over the cake in a zigzag motion to avoid clumping.
A pastry brush (such as West Bend) comes in handy for applying the brandy glaze between layers—it’s more precise than a spoon. ✨
Nutrition facts
Frequently asked questions
Can I use fresh plums instead of plum jam?
Yes, but you’ll need to prepare them first! Simmer 1.5 cups chopped fresh plums with 2 tbsp sugar and 1 tsp cinnamon until softened (10 minutes). Strain out the seeds and mash the fruit until smooth. Use this fresh plum purée instead of the jam in the recipe. The texture will be slightly different but still delicious!
Why does my cake turn out dense instead of light?
Dense cake usually happens from overmixing or incorrect ingredient ratios. Make sure to mix the dry ingredients on low speed just until combined, and don’t overbeat the butter-sugar mixture. Also verify your flour type—using bread flour instead of cake flour will make the texture heavier. Room temperature ingredients are key too!
How do I adjust this recipe for a Bundt pan?
For a Bundt pan, reduce the batter to 1.5 kg total weight (about 10 cups) and bake at 325°F (163°C) for 50-60 minutes. Use a non-stick Bundt pan and grease it thoroughly. The cake will be one layer instead of two, so focus on even baking. Let it cool completely before removing from the pan to prevent cracking.
Can I make this cake gluten-free?
Replace the all-purpose and cake flour with a 1:1 gluten-free baking flour blend (like Bob’s Red Mill). Add 1 tsp xanthan gum to help bind the cake. You may also need to increase the leavening slightly—try 2.5 tsp baking powder instead. The texture will be slightly different but still delicious when paired with the plum filling.
How long can I store the cake?
This cake stays fresh for 3 days at room temperature wrapped in plastic, or 1 week refrigerated. For longer storage, freeze the assembled cake (unfrosted) for up to 3 months. Thaw overnight in the fridge before serving. The flavors actually improve after the first day as the filling softens slightly!
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