Fish oil is the fat or oil that's extracted from fish tissue. It usually comes from oily fish such as herring, tuna, anchovies and mackerel. Yet sometimes it's produced from the livers of other fish, as is the case with cod liver oil.
A piquillo pepper is a type of small red chili pepper with a shape similar to a triangle that is grown in Spain. It has a flavor that is slightly sweet and spicy, but it is not a truly hot pepper.
Pimientos del Piquillo. These are char-grilled whole sweet red Spanish peppers that are peeled and ready to eat. They are sold in salted water in small jars. Uses: The peppers can be left whole and stuffed with soft cheese and herbs and baked for a tasty starter. Or chop and add to risottos, pasta sauces, pizzas or soups.