I found this recipe in Cooking Light Annual Recipes 2008. It's being posted for ZWT. You can use this rub on white-fleshed fish fillets such as catfish or snapper, chicken breasts, shrimp, sprinkled on burgers or lightly oiled corn on the cob.
Forget the Filet-O-Fish; this may be the perfect fish sandwich. Blackening seasoning and sliced red onion add a little kick and the creamy avocado spread melts in your mouth. Make it a Meal: Serve with steamed asparagus or sautéed zucchini, oven fries and a salad.