M&S Our Best Ever Prawn Toast This is our best ever prawn toast… because we use responsibly sourced black tiger prawns, handmade with the perfect blend of spring onions, warming ginger & crispy sesame seeds. Served with sweet chilli dipping sauce. Oven cooks in 12 minutes. This is not just Food, this is Our Best Ever Food from M&S: your everyday favourite dishes, expertly developed by our in-house chefs, to deliver absolutely mind-blowing taste. Our M&S seafood products have been sourced from fisheries and fish farms in a way that minimises their ethical and environment impact, while guaranteeing you the highest quality, delicious seafood you’d expect from M&S.