-
Bring 1 1/4 inches of water to a boil in a immense straight-sided skillet. Generously season with salt. Add salmon, skin-facet down; return to a boil. Take away from warmth, conceal, and let stand until salmon is factual opaque at some level of, 15 to 17 minutes. Spend a slotted spatula to transfer salmon to a plate, skin-facet up.
-
Meanwhile, inform 2 inches of water to a simmer in a immense pot fitted with a steamer basket (or a steel colander). Plan potatoes in basket, conceal, and steam until without anguish pierced with the tip of a sharp knife, 12 to fifteen minutes.
-
Scramble collectively buttermilk and mayonnaise in a bowl, poke in dill, and season with salt and pepper. Take away skin from salmon; flake fish into immense objects. Divide salmon, potatoes, and cucumber amongst plates; drizzle with dressing, and relieve with lemon wedges.
