Grate the peel from the oranges and squeeze the juice.
Beat soft butter, sugar and salt until creamy and light.
Add the eggs one by one, mixing inbetween.
Mix flour, tumeric, baking powder and orange peel.
Alternately stir the flour mixture and orange juice (200ml) into the butter and egg mixture.
Pour into a prepared loaf pan.
Bake in preheated oven at 180° C for about 50 minutes or until a wooden skewer inserted into the center of the cake comes out clean.
Leave to cool for about 10 minutes in loaf pan, then remove and turn the cake onto a cake rack.
Leave to cool.
Melt the chocolate and coconut oil in a bain-marie.
Top the cake with chocolate.
Garnish with orange, if desired.