I'm quite proud on that cake. I took a rather basic cake recipe with dried figs (which I don't  really fancy ) and adjusted it .  Quickly done but really good.

150 gr Butter at room temperature
125 gr sugar
a pinch of salt
2 eggs
75 gr walnuts roughly copped
75 gr hazelnuts roasted and roughly copped
150 gr dark chocolate chopped
1 dl buttermilk
1 organic orange peel grated
2 tbs orange juice
250 gr flour
1/2 ts baking soda

Mix the butter till soft ad the sugar  and the salt stir , ad the eggs and till fluffy and bright. Add the nuts , chocolate, the buttermilk and orange zest and juice.
The the flour and soda.
Fill into a cake form and bake for 50 minutes on 180°.

Topping:

zest an orange ( cut the peel into thin slices )
In a pan cook 6 tbs orangejuicew and 4 tbs sugar till the suger is dissolved and starts to caramelize. Add the zest an let it cook for 5 minutes.

0ake holes into the cake with a chopstick or a big needle and poure the sugar mixture over the still hot cake.