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.
Piquillo Peppers - Whole in Small Tin. Whole acorn-fire roasted pimentos del piquillo. These large, firm, whole peppers are the very best quality we have found for using in recipes because their texture holds up to cooking well.