Ocado White Sourdough This sliced white sourdough is made with a slow fermented starter dough, ensuring a delicious depth of flavour. It's the perfect base for your favourite savoury sandwich fillings such as ham salad, egg mayo or grilled halloumi and roasted veg. Heat up as a tasty cheese and tomato toastie in minutes or enjoy simply with butter and jam for a late supper treat. Looking for the perfect spread for your bread? Search 'Ocado butter' for a range of salted, unsalted and reduced fat spreads.