How to make a Nutella bundt cake step by step

Step - - preparations

• Take the ingredients out of the fridge at least 2 hours in advance so they can come to room temperature – eggs, buttermilk, and butter.
  120 g butter, 3 eggs, 160 g buttermilk
• Line the baking pan with parchment paper, or thoroughly grease it with butter and dust it with flour or breadcrumbs.
• Preheat the oven to 170°C (fan-assisted mode) or 180°C (top/bottom heat).

Step 2 – preparing the batter for the bundt cake

• Sift together the flour, baking powder, and salt through a sieve.
  250 g all-purpose flour, 2 teaspoon baking powder, 0,5 teaspoon solt
• Place the softened butter in a large bowl, add the sugar, oil, and vanilla.
  120 g butter, 45 g oil, 150 g powdered sugar, 2 teaspoon vanilla
  
• Mix on high speed for a few minutes until the mixture becomes light, fluffy, and increases in volume.
  
• Add the eggs one at a time to the creamed butter mixture – I also add a spoonful of flour each time – and mix briefly, just until combined.
  3 eggs
  
• Add about half of the flour and mix briefly on low speed.
  
• Add the buttermilk and mix briefly.
  160 g buttermilk
  
• Add the remaining flour and mix briefly.

Step 3 – preparing the chocolate batter

• Set aside about 1/3 of the batter into a bowl.
  
• Add Nutella to the smaller portion and mix briefly until combined.
  100 g Nutella spread
  

Step 4 – layering the batter

• Spoon alternating layers of the plain and chocolate batter into the prepared pan until all of it is used.
  
• Using a sharp knife or a skewer, swirl the batter together.
  

Step 5 – baking the Nutella bundt cake

• Place the pan with the batter into the preheated oven and bake the bundt cake for about 60–70 minutes, until a toothpick comes out clean.
• Remove the baked bundt cake from the oven and let it cool completely before spreading the cream on top.

Step 6 – preparing the cream for the bundt cake

• Combine the mascarpone with Nutella – you can mix it less thoroughly so that a light marbled effect is still visible.
  100 g mascarpone cheese, 30 g Nutella spread
  
• Spread the cream on top of the cake.
  
• Chop the hazelnuts and sprinkle them over the cream (you can check the notes below the recipe on how to toast the hazelnuts to make them even more flavorful).
  approx. 50 g hazelnuts