Grilled mackerel with brown butter potatoes and boiled eggs

By Niklas Ekstedt From Saturday Kitchen Ingredients 4 mackerel fillets 8–12 baby new potatoes 4 eggs ½ pointed cabbage, leaves cut into 3cm/1¼in squares 4 tbsp butter 1 bunch chives, snipped 1 tbsp chopped red onion 2 tbsp capers 3 tbsp wholegrain mustard 4 tbsp soured cream 1 …