Ingredients:

• 220 g butter
• 220 g sugar
• 1 packet vanilla sugar (or 1 teaspoon vanilla extract)
• 220 g all-purpose flour
• 1 packet baking powder (about 2 teaspoons)
• 4 eggs
• 120 g raspberries
• 1 tablespoon rum
• 150 ml orange juice
• 3 tablespoons cocoa powder
• Butter and flour for the pan

For Decoration:

• Some dark chocolate
• A few raspberries
• Some sugar sprinkles

Optional Quark Filling:

• 500 g quark (or substitute with cream cheese or ricotta)
• 4 tablespoons sugar
• 1 packet vanilla sugar (or 1 teaspoon vanilla extract)
• 1 packet vanilla pudding powder (or 40 g instant vanilla pudding mix)
• 100 ml milk

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Instructions:

1. Prepare the Batter:
   • In a large mixing bowl, cream together the butter, sifted sugar, vanilla sugar (or vanilla extract), and rum until light and fluffy.
   • Gradually add the egg yolks (reserve the egg whites), mixing well after each addition.
   • In a separate bowl, combine the flour and baking powder. Sift this mixture and add it to the batter alternately with the orange juice, mixing until just combined.
2. Add Egg Whites:
   • In a clean bowl, beat the reserved egg whites until stiff peaks form.
   • Gently fold the beaten egg whites into the batter.
3. Divide and Flavor the Batter:
   • Preheat your oven to 175°C (350°F).
   • Divide the batter evenly into two bowls.
   • Stir the cocoa powder into one half of the batter to create the chocolate layer.
4. Assemble the Cake:
   • Grease and flour a Bundt cake pan thoroughly.
   • Spoon alternating layers of the light and dark batter into the prepared pan.
   • Scatter the raspberries evenly throughout the batter.
   • Gently swirl a fork through the batter to create a marbled effect.
5. Bake:
   • Bake in the preheated oven for about 50–60 minutes, or until a toothpick inserted into the center comes out clean.
   • Allow the cake to cool in the pan for about 15 minutes, then invert it onto a wire rack to cool completely.
6. Optional Quark Filling:
   • If using the quark filling, mix all the filling ingredients together until smooth.
   • Layer the filling with the batter during assembly: pour a layer of batter, add a layer of quark filling, and repeat as desired.
7. Decorate:
   • Once the cake is completely cool, melt the dark chocolate and drizzle it over the top.
   • Decorate with fresh raspberries and sugar sprinkles.
8. Serve:
   • Slice and enjoy your delicious raspberry Bundt cake!

Tip: The quark filling adds a creamy layer to the cake, making it even more indulgent. If quark is not available, you can substitute it with cream cheese or ricotta for a similar texture.

Enjoy your meal!