Well, you made me go look up remoulade sauce. Here’s a recipe for a sauce for crab cakes...
http://www.food.com/recipe/mini-crab-cakes-with-remoulade-sauce-45504
Doesn’t sound too bad! Kind of a spicy tartar sauce.
That is a pretty ambitious version , but basically we want a nice cream sauce with a tad of acidity to play with the seafood but not overwhelm it.
God I LOVE five and chips.