Salted Cod or bacalhau is probably the most traditional ingredient you can find in Portugal, especially during holiday seasons. Considered a delicacy, there are 1001 ways to cook this dried and salted codfish.
These are freezer friendly. If you do not eat them all at once, wrap them tightly in Ziploc bag or an airtight container and freeze. These work out well defrosted in either the microwave or in a toaster oven.