Plum Cake Bars (Pflaumenkuchen Inspired)

A buttery crumble crust, jammy cinnamon-spiced plums, and a golden, shortbread-like streusel topping make these Pflaumenkuchen-inspired plum cake bars my own twist on a classic German dessert.

Some recipes I want to recreate as faithfully as possible. Other recipes I taste, I think about what I love about them, and I immediately start imagining how I would make them at home. These Pflaumenkuchen-inspired Plum Cake Bars are definitely that.

I first learned about Pflaumenkuchen while researching German desserts for summer and fall. But when I started thinking about making it myself, I realized I didn’t necessarily want to recreate the traditional version exactly. I wanted something that fit what I was craving. Something buttery, crumbly, with plenty of fruit. And, most importantly, something that didn’t involve another yeasted dough.

So I decided to experiment. Instead of the traditional yeasted cake base you might find in a classic Pflaumenkuchen, I turned mine into bars with a buttery, cookie-like crust and shortbread-like crumble topping. And I’m very happy to report that the experiment worked!

What Is Pflaumenkuchen?

If you’re new to the term, Pflaumenkuchen is a traditional German plum cake made with fresh plums. It’s a beloved late-summer and early-fall bake, when plums are plentiful and at their best.

There are different variations, but the version I had in mind uses a yeasted dough as the base, with sliced plums arranged over the top. It’s the kind of cake that feels very seasonal. A simple, fruit-forward dessert made for enjoying alongside coffee or tea, or for an afternoon gathering.

My version takes those same general ideas and gives them a completely different structure. Instead of a soft, yeasted cake base, we’re making something closer to a shortbread-cookie-meets-crumble bar.

Start With the Plums

First, prepare the plums. I picked up mine during a grocery run at my local ALDI here in Germany, which is one of those very ordinary parts of life abroad that I love capturing. Sometimes living abroad is grand travel and exploring new countries. And sometimes it’s standing in your local grocery store trying to figure out whether they have the fruit you need for the recipe you’ve been dreaming about.

For this dessert, I cut the plums into pieces and tossed them with lemon juice, a little salt, sugar, and cinnamon. Then I let them sit for a little while to marinate. This step matters because it gives the fruit time to release some of its juices and create a syrupy coating. Rather than putting completely raw fruit onto the crust and hoping everything works out in the oven, we’re giving the plums a little head start to become jammy, juicy, and cinnamony.

Make the Buttery Crust & Crumble

While the plums are resting, it’s time to make the crust. This is essentially a buttery crumble mixture made with flour, butter, powdered sugar, vanilla, and salt. And yes, I am absolutely one of those people who believes a dessert benefits from a good pinch of salt.

You can make this mixture by cutting the butter into the dry ingredients or, if you don’t mind getting your hands involved, use your fingers to work everything together. Once the mixture comes together, reserve some for the topping. Add the rest directly to your baking pan. Press it down firmly to create an even crust. If the mixture is sticking to your fingers, slightly dampening your fingertips can make pressing the crust into the pan much easier.

Why I Pre-Bake the Crust

This is one of the decisions I made while developing this recipe that I’m particularly happy with. Before adding the plums, I partially bake the crust. Why? Because those juicy plums are bringing a lot of moisture with them. And I didn’t want the crust to turn into a soggy bottom. A short pre-bake gives the crust enough structure to hold up once we add the fruit and all of its delicious syrup.

After about 10–12 minutes, the crust should have puffed slightly and begun to set. That’s when the plums go in.

Add the Plums and Crumble

Once the crust has had its head start, spoon the plums and their syrup over the top. This is the moment when you can really see the dessert coming together. Then scatter the reserved crumble mixture over the top. It doesn’t have to be perfect. In fact, please don’t worry if it doesn’t crumble exactly the way you imagined. Once everything is assembled, put it back in the oven until the fruit is bubbling and the topping is golden.

The Result: My Version of Pflaumenkuchen

When this came out of the oven, I was so excited to finally taste it. I’d had this idea in my head for a while: a German plum cake, but made in the style of the desserts I naturally gravitate toward. The bottom is buttery and structured, almost like a cookie crust. The middle is soft, jammy, and full of cinnamon-spiced plums. And the crumble on top adds another buttery, golden texture. Then I added some vanilla cream on the side.

A German Classic With My Own Twist

I think this recipe is a pretty good representation of how I approach food while living abroad. I don’t always want to make something exactly the way it’s traditionally made. But sometimes I do. And sometimes I want to understand the original idea and then figure out how it fits into my kitchen, my family’s preferences, and what I’m craving right now.

Here, traditional Pflaumenkuchen inspired me. And my Americanized dessert preferences took it in another direction. And living in Germany gave me access to the beautiful seasonal plums that made it all possible.

So no, this isn’t meant to replace traditional Pflaumenkuchen. It’s my interpretation of it. And so happy with the results!

Tips for Making These Plum Cake Bars

1. Let the plums sit before baking: Letting the plums macerate with the sugar and cinnamon helps create that syrupy fruit layer I love in this dessert.

2. Don’t skip the pre-bake: Because the plums release quite a bit of juice, partially baking the crust helps keep the bottom from becoming overly soggy.

3. Don’t worry about perfect crumble pieces: The topping is supposed to look rustic. Scatter it over the fruit rather than worrying about making perfectly sized pieces.

4. Serve with something creamy. I loved these with vanilla cream, but whipped cream or vanilla ice cream works beautifully too.

And if you’re anything like me, try them while they’re still a little warm. But refrigerate them if you want a more bar-like, clean-cut finish.

Looking for more German-inspired recipes?

If you’re enjoying my adventures in German food, you might also enjoy:

• Käsespätzle Two Ways
• Homemade Spätzle
• Rote Grütze: German Summer Red Fruit Compote

I’m still learning my way through German food, one recipe and one very full plate at a time. So stay tuned!