Fish Burgers | Guest Recipes | Nigella's Recipes | Nigella Lawson

Ingredients

• 400 millilitres rice vinegar
• 1½ tablespoons caster sugar
• ½ teaspoon yellow mustard seeds
• 5 whole black peppercorns (crushed)
• 1 clove
• 1 Lebanese cucumber (thinly sliced into rounds)
• ¼ red onion (thinly sliced into rings)
• vegetable oil (for deep-frying)
• seasoned plain flour (for dusting)
• 1 egg (lightly beaten)
• 100 grams panko breadcrumbs
• 4 x 120g / 4 1/2 oz skinless firm white fish fillets such as barramundi or cod
• 4 sesame brioche burger buns
• ¼ iceberg lettuce (shredded)
• 2 tablespoons mayonnaise
• juice of ½ lemon