This super quick and easy dressing is a genius way to use up that last spoon of harissa. Drizzle over chopped salads, use to marinade fish or meat, or stir through tabbouleh, couscous or rice.

Mix marie-rose dressing (aka seafood cocktail sauce) with cooked prawns and serve with Little Gem lettuce leaves or shredded iceberg lettuce for a classic prawn cocktail starter, or a sandwich ...