Preheat your oven to 350°F (175°C). This is crucial for ensuring your cake bakes evenly.
Lightly grease your 9-inch round cake pan with spray oil. This will prevent the cake from sticking and make for easier removal once it’s baked.
In a large mixing bowl, add the 5 eggs. Using your mixer, beat the eggs on high speed until they are light, fluffy, and have doubled in volume. This usually takes about 5-7 minutes.
Once the eggs are fluffy, gently fold in the 250 grams of chocolate hazelnut spread or Nutella. If you’re using cocoa powder, you can add it in this step as well. Be careful not to deflate the eggs; you want to keep as much air in the mixture as possible.
Pour the batter into the prepared cake pan, smoothing the top with a spatula.
Place the cake pan in the preheated oven and bake for about 25-30 minutes, or until a toothpick inserted into the center comes out clean.
Once baked, allow the cake to cool in the pan for about 10 minutes before transferring it to a wire rack to cool completely. Once cooled, slice and serve. Enjoy your 2-Ingredient Nutella Cake with a dusting of powdered sugar or a scoop of ice cream on the side for an extra treat!
