Greek Lucky New Year’s Cake (Vasilopita)

Name: Greek Lucky New Year’s Cake (Vasilopita)
Cook time: 55 min
Total time: 55 min
Cuisine: Greek
Ingredients: 250 g unsalted butter; 270 g sugar; 4 eggs; 200 g greek yoghurt; ½ tbsp vanilla extract; 25 ml brandy; zest of half an orange; zest of half a lemon; 420 g self raising flour; 1 tsp baking powder; 120 g hazelnuts; 1 lucky coin; icing sugar for decoration