Nutritious, delicious preserved seafood – your new pantry staple The Stock Merchant Provisions is a collection of ethical, quality fare for everyday dining. They believe in real food, and work closely with producers who provide them with superb ingredients. The Stock Merchant premium tinned seafoods are ready to serve as a quick lunch, canape or dinner. They’re extra-sensational served with shallots, avocado, herbs and a generous dash of lemon. Ingredients: Mackerel (fish) (70.8%), organic extra virgin olive oil* (29%), salt.