German Poppy Seed Cake With Pastry Crust

This German poppy seed cake with pastry crust is a simple homemade dessert that is rich, nutty, and full of classic flavor. It has a buttery shortcrust base and a soft poppy seed filling on top. It is beginner-friendly and perfect for coffee time or a holiday treat.

Poppy seed cake is a classic German bake known as Mohnkuchen. It appears in bakeries and home kitchens all year round, especially around Christmas and Easter. The ground poppy seeds give it a deep, nutty taste that pairs well with the buttery crust.

This recipe keeps things simple with an easy shortcrust base and no yeast. The filling comes together in one pan on the stove. Serve it warm or cold, with whipped cream or a dusting of powdered sugar.

Recipe Card

Instructions

Step 1: Make the Shortcrust Pastry

1. In a large bowl, mix the flour, sugar, and salt.
2. Add the cold butter cubes. Rub them into the flour with your fingertips until the mix looks like coarse crumbs.
3. Add the egg and vanilla extract. Mix until a soft dough forms. Add 1 tablespoon of cold water if the dough feels dry.
4. Shape the dough into a flat disc. Wrap it in plastic wrap and chill in the fridge for 30 minutes.
5. Preheat your oven to 375°F (190°C). Grease a 9-inch tart pan with a removable bottom.
6. Roll the dough out on a floured surface. Press it into the tart pan. Push it up the sides to form a rim.
7. Prick the bottom with a fork a few times. Chill in the fridge while you make the filling.

Step 2: Make the Poppy Seed Filling

1. In a medium saucepan, combine the ground poppy seeds, milk, sugar, honey, and butter.
2. Cook over medium heat, stirring often, for 5 to 7 minutes, until thick and creamy.
3. Remove from heat. Stir in the vanilla, cinnamon, nutmeg, salt, and semolina or breadcrumbs.
4. Let the mix cool for 10 minutes. Then stir in the egg yolks, raisins, and almonds if using.
5. In another bowl, beat the egg whites until stiff peaks form. Gently fold them into the poppy seed mix in three parts.

Step 3: Assemble and Bake

1. Pour the poppy seed filling into the chilled crust. Smooth the top with a spatula.
2. Brush the edges of the crust with the beaten egg. Sprinkle coarse sugar over the edges.
3. Bake for 42 to 48 minutes, until the crust is golden and the filling is set.
4. If the top browns too fast, cover it loosely with foil.
5. Let the cake cool in the pan for 20 minutes. Then remove the ring and slide the cake onto a plate.
6. Dust with powdered sugar before serving. Slice and serve warm or cold.

Tips Section

• Keep the butter cold for the pastry. Cold butter makes the crust light and crumbly.
• Do not overmix the dough. Stop as soon as it comes together.
• Chill the crust before baking. This stops it from shrinking in the pan.
• Use ground poppy seeds, not whole ones. Whole seeds do not soften enough in the oven.
• Stir the filling while it cooks. This stops it from burning on the bottom.
• Add semolina or breadcrumbs. This thickens the filling and stops it from getting wet.
• Fold the egg whites gently. Do not stir, or the air will escape.
• If the filling looks too thin, cook it a few minutes longer before adding the eggs.
• Let the cake cool before slicing. Warm filling can run and make messy slices.
• Serve with whipped cream or vanilla sauce for a classic taste.

Variations

• Poppy Seed Streusel Cake: Sprinkle streusel over the filling before baking.
• Poppy Seed Almond Cake: Add 1/2 teaspoon of almond extract to the filling and sprinkle sliced almonds on top.
• Poppy Seed Apple Cake: Add 1 cup of grated apple to the filling for extra moisture.
• Poppy Seed Raisin Cake: Use extra raisins for a sweeter, heartier filling.
• Mini Poppy Seed Tarts: Use a muffin tin and cut the dough into small rounds. Bake for 20 to 25 minutes.

Storage Instructions

Store the poppy seed cake in the fridge in an airtight container. It stays fresh for up to 4 days. Let it come to room temperature for 15 minutes before serving.

You can keep it at room temperature for up to 2 hours. After that, move it to the fridge to keep the filling safe.

To reheat, place the cake in a 300°F (150°C) oven for 8 to 10 minutes. This warms the filling and crisps the crust. Do not use a microwave, as it makes the pastry soggy.

To freeze, wrap the baked cake tightly in plastic wrap and foil. Freeze for up to 2 months. Thaw at room temperature overnight. Warm in the oven before serving.

For make-ahead prep, make the dough and filling one day in advance. Keep the dough in the fridge and the filling in a sealed container in the fridge. Assemble and bake the cake the next day.

FAQ Section

Can I use whole poppy seeds instead of ground poppy seeds?

No. Whole poppy seeds do not soften enough during baking. Use ground poppy seeds for the best texture. You can grind them in a coffee grinder or food processor.

Where can I buy ground poppy seeds?

You can find ground poppy seeds in German and European specialty stores, or in the baking aisle of some supermarkets. You can also grind whole poppy seeds at home.

Why did my poppy seed filling turn out dry?

The filling may have cooked too long, or there was not enough milk. Add a splash of milk while cooking and stir well. Also, do not overbake the cake.

Can I make this poppy seed cake without eggs?

Yes. Skip the eggs and use 3 tablespoons of cornstarch mixed with 3 tablespoons of water instead. The filling will be slightly denser but still tasty.

Can I make this German poppy seed cake gluten-free?

Yes. Use a gluten-free all-purpose flour blend in place of the regular flour. The texture may be slightly different, but it still works well.