Eric Kim’s scallion-oil fish turns olive oil, alliums and white fish fillets into a simple, luscious dinner. By Melissa Clark Eric Kim’s scallion-oil fish.Credit...Linda Xiao for The New York Times.

Few meals foster such a sense of community as a fish fry. Whether its gathering in a church basement on a Friday night or at a picnic table after a spring morning of slaying crappie, a perfect fish ...