José Pizarro's Hake Croquetas Recipe

Ingredients

• 2 tbsp olive oil
• 1 large onion, finely sliced
• 1 bay leaf
• 200ml (7fl oz/scant 1 cup) white wine
• 300g (10½ oz) fresh hake fillet
• 3 tbsp plain (all-purpose) flour
• 1 large free-range egg, beaten
• 125g (4oz/generous 2 cups) panko breadcrumbs
• 1.2 litres (40fl oz/4¾ cups) vegetable or olive oil
• 75ml (2½fl oz/5 tbsp) olive oil
• 75g (2½oz/scant ⅔ cup) plain (all-purpose) flour
• 250ml (8½fl oz/1 cup) full-fat (whole) milk
• sea salt and freshly ground black pepper
• 1 free-range egg yolk
• 1 garlic clove, crushed
• finely grated zest of 1 lemon, plus juice to taste
• 1 tsp white wine vinegar or apple cider vinegar
• pinch of sea salt
• 150ml (5fl oz/scant ⅔ cup) olive oil