“Fusilli” with king prawns, leeks and hazelnuts

Difficulty:  Time: INGREDIENTS (x 4 persons): - 320 g of Fusilli pasta - 300 g jumbo King prawns - 50 g roasted hazelnuts, grinded - 1 bag of saffron powder - 1/2 glass of still dry white wine, such as Alentejo or similar - 1 big leek, thinly sliced - extra virgin olive oil - sea salt/fine salt - black pepper, freshly grounded WHAT TO DO: 1. ...