
Ingredients
1 fennel bulb (about 330g)
1.2 litres vegetable stock
1 Sorrento lemon, zest and juice
1 tbsp olive oil
50g unsalted butter
1 onion, finely chopped
1 celery stick, trimmed and finely chopped
350g arborio risotto rice
150ml white wine
60g pecorino, finely grated