Hard-Boiled Egg Toast with Harissa Butter

Hard-Boiled Egg Toast with Harissa Butter. a pair of tablespoons softened, tasteless butter. one teaspoon Harissa (homemade or store-bought) Kosher salt. Freshly squeezed juice. one 3/4-inch thick slice of bread (multigrain used here) one boiled egg, sliced (check out my Foolproof Hard-Boiled Eggs) Parsley leaves. Freshly