Mackerel Fillets with Lime-Mustard Butter and Scallions

Every summer, when I was a kid, my Dad and uncle would go on a once-a-year fishing trip. They’d take my brothers and some of their friends. Because we were girls, my cousin Leslie and I were never included so on those days we went fishing on our own. We used skinny twigs for fishing rods, some of our mothers’ yarn for string and safety pins as hooks. We did catch a few minnows for our trouble, but threw them back. The men caught mackerel, which my grandma always broiled with lots of lemon or lime and mustard. I can still taste how delicious those days were.