If i recall correctly, it was primarly chopped up shrimp, squid, scallops,(might be some othe shellfish), minced garlic and selcon. thet exact proportion was not really specified. Rogger said he preferred not to use fish, I believe he did not use fish because they where oily.
In addition he said you could use gelatin as a binder, but this was personal preference as some people don't like using it because it is from cows a land based animal.
Chop up these items place them in a ziploc bag. then flatten out the ziploc bag and freeze. It turns out like a big frozen pancake that way you can break little pieces off as they are needed.
hth
jess