Preheat & Prepare the Pan: First things first—preheat your oven to 180 degrees Celsius (or 160 degrees for circulating air). Grease your Bundt pan (24 cm) and lightly flour it to prevent sticking.
Mix the Wet Ingredients: In a large mixing bowl, beat the eggs, sugar, and salt together for about 2 minutes until the mixture is fluffy.
Combine the Dry Ingredients: In another bowl, combine the ground nuts, baking powder, flour, and cinnamon.
Bring it Together: Gradually add the dry mixture to the wet ingredients, then include the yogurt and cooking oil. Mix everything for about 1 minute until well combined.
Bake: Pour the batter into the prepared Bundt pan and smooth the top. Bake for about 50 minutes or until a toothpick inserted in the center comes out clean. Let the cake cool on a wire rack for about 30 minutes.
Garnish: Carefully remove the cake from the mold. Melt the white chocolate over a double boiler, then mix in the nut nougat until smooth. Pour the chocolate mixture over the cooled cake and sprinkle with chopped hazelnuts.
And there you have it! Your Nut Bundt Cake is ready to be enjoyed!