Season both sides of the salmon with kosher salt, then start with the salmon marinade so it has time to work while you handle everything else. Whisk together the soy sauce, sesame oil, garlic, and ginger in a shallow dish. Add the salmon fillets flesh-side down and let them sit at room temperature for 15 minutes — any longer and the soy sauce starts to firm up the texture of the fish, so don't walk away and forget about it.
4 6 oz salmon fillets, skin on or skin off, 2 tablespoons soy sauce, 1 teaspoon toasted sesame oil, 1 garlic clove, 1 teaspoon kosher salt, 1 teaspoon fresh ginger
While the salmon marinates, tackle the cucumbers. Lay them on a cutting board and whack them with the flat side of a knife or a rolling pin until they crack and split open, then tear into rough, bite-size pieces. Toss them in a colander with the salt and let sit for 10 minutes to pull out excess water, then shake off the liquid without rinsing.
12 Persian cucumbers, 1 tablespoon kosher salt
Whisk the rice vinegar, sesame oil, honey, garlic, ginger, and chili crisp oil together in a large bowl — spoon the oil off the top of the jar and save the crunchy bits for later. Toss in the drained cucumbers and set aside; it only improves as it sits.
12 Persian cucumbers, 6 tablespoons rice vinegar, 1 tablespoon toasted sesame oil, 1 tablespoon honey, 3 garlic cloves, 1 tablespoon chili crisp oil, 1 tablespoon fresh ginger
When the salmon's done marinating, lift the fillets out and pat them completely dry with paper towels — any leftover marinade on the surface will make it steam instead of sear. Season all over with the kosher salt.
4 6 oz salmon fillets, skin on or skin off
Heat the neutral oil in a heavy skillet over medium-high until shimmering.
1 tablespoon neutral oil
If you're going skin-on: lay the salmon in skin-side down and press gently with a spatula for the first 15 seconds for full contact. Let it cook undisturbed for 5 to 6 minutes; it'll release naturally when it's ready. Flip and cook another 2 to 3 minutes for medium.
4 6 oz salmon fillets, skin on or skin off
If you're going skin-off: lay the salmon in presentation-side down first and let it sear undisturbed for 6 to 7 minutes until it's deeply golden and releases easily from the pan. Flip and cook another 2 to 3 minutes for medium, spooning a little of the pan oil over the top in the last minute for extra color and flavor.
Either way, rest the salmon for a minute off the heat before serving.
To serve, spoon a generous bed of the smashed cucumbers onto each plate and set the salmon on top. Spoon the chili crisp, solids and all, over each fillet right before serving so the fried bits stay crunchy. Finish with scallions, cilantro, sesame seeds, and a lime wedge on the side.
4 –5 tablespoons store-bought chili crisp, 2 scallions, Fresh cilantro leaves, Toasted sesame seeds, Lime wedges