This is our Xmas Eve dinner every year. Also, my all time favorite pasta dish! This tradition started because Catholics did not eat meat on Christmas Eve and they sought out seafood based pasta dishes to serve instead. All ingredients are approximations since we never really measure anything. Alter to suit your family's tastes! THIS RECIPE SHOULD BE MADE ONE DAY AHEAD TO ALLOW THE CRAB FLAVORING TO PERMEATE THE MARINARA!