Dirty lamb burger, sliced onions and aloo pakora

By Tony Singh From Saturday Kitchen Ingredients For the spicy onions 250g/9oz red onions, sliced as thin as possible 1 lime, juice and zest only 50g/1¾oz tomato ketchup 50g/1¾oz mango chutney 10g/⅓oz ginger paste 10g/⅓oz garlic paste 20g/¾oz chopped fresh coriander 10g/⅓oz chopped fresh chilli …