Crawfish Corn Soup Crawfish Corn Soup Advocate staff photo by Heather McClelland -- Crawfish Corn Soup is an award-winning slow-cooking dish. Jeffery Serrett Aug. 07, 2013 Comments ADVOCATE-TESTED RECIPE Crawfish Corn Soup Serves 8 to 10. Recipe is by Jeffrey Serrett. 2 lbs. peeled crawfish 2 (14-oz.) cans low-sodium cream corn 2 (14-oz.) cans cream of potato soup 2 (12-oz.) cans low-fat evaporated milk 1 (10-oz.) can Ro-tel tomatoes, optional Green onions, chopped, for garnish 1. Mix all ingredients in slow cooker. Cook 6 to 8 hours on Low or 4 hours on High. 2. Serve. Add chopped green onions for garnish.