Combine the eggs, sugar, vanilla sugar, and pinch of salt in a mixing bowl and using an electric mixer, beat the mixture for 2-3 minutes, or until it becomes light, and pale yellow in colour.
Mix in the Greek yogurt until it is fully incorporated into the mixture.
Fold in the flour and baking powder until just combined. Add the orange and vanilla essences, along with the cocoa powder, and gently fold them into the batter until fully combined.
Pour in the sunflower oil and mix until it's fully incorporated into the batter.
Fold in the dark chocolate chips and dried fruits.
Pour the batter into a loaf pan lined with parchment paper.
Place the loaf pan in the oven, preheated to 170°C (fan-assisted) (340 F), and bake for 35 minutes.
Remove the cake from the loaf pan and place it on a wire rack to cool completely.
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Notes
Feel free to use your favourite dried fruits, such as cranberries, raisins, apricots, or dates. You can even add some chopped nuts for extra crunch and flavour.If you prefer a milder chocolate flavour, you can use semi-sweet or milk chocolate instead.After the baking time is complete, it's wise to perform the toothpick test. Insert a toothpick into the center of the cake. If it comes out clean or with a few dry crumbs, the cake is done.