Spiced swordfish with pearl barley and cardamom (Nelly Robinson)

Name: Spiced swordfish with pearl barley and cardamom (Nelly Robinson)
Prep time: 25 min
Cook time: 25 h
Total time: 25 h
Yield: 6 portions
Ingredients: 400 g pearl barley; 800 g water; 150 g manchego cheese; 300 g Parmesan cheese; 30 g cumin seeds; 15 g ground lemon myrtle; 10 g black peppercorns; 5 g fennel seeds; 5 g pink peppercorns; 6 swordfish; 5 cardamom pods; 3 Szechuan peppercorns; 1 dried bay leaf; ¼ tsp fresh lemon thyme; 125 g liquid fish stock; 125 g full cream milk; 15 g soy sauce; 120 g extra virgin olive oil; 100 g fresh baby spinach leaves; 1 bunch fresh parsley; 1 bunch fresh tarragon; 1 bunch fresh coriander; 1 brown onion; 1 garlic clove; 20 g extra virgin olive oil; 875 g liquid fish stock; 2 pinches sea salt; 2 pinches ground white pepper; 3 tsp unsalted butter; lemon juice