A Peruvian-Japanese Love Letter: Seared Scallops & Miso Huancaina
I still remember standing in a bustling Lima market, eating ceviche and thinking about how the aji amarillo chile has this incredible fruity heat that practically begs for fermentation. That memory sparked this dish: Hard-Seared Scallops with Aji Amarillo-Miso Huancaina & Crispy Purple Potatoes. I love when a plate practically vibrates with flavor. We take sweet, dry-packed scallops and give them a brutal, crust-building sear. The secret here? Dry the scallops on paper towels in the fridge for an hour before cooking. It guarantees that golden crust without overcooking the delicate center. We rest these beauties on crispy smashed Andean potatoes. But the real magic happens in the sauce. I took the classic Peruvian huancaina and supercharged it with white miso. Why this works: the enzymes in the miso bind with the dairy and aji paste, amplifying the glutamates and creating an umami bomb that perfectly balances the sweet scallop. We cut all that richness with a bright hijiki seaweed salsa criolla. Don't have purple potatoes? Use yukon golds. Want it spicier? Fold a spoonful of gochujang into the sauce. Food is meant to be played with—so break the rules and make it yours.
Featured Recipe
Hard-Seared Scallops with Aji Amarillo-Miso Huancaina & Crispy Purple Potatoes
I love when a dish practically vibrates with flavor. We're taking sweet, dry-packed sea scallops, hitting them with a brutal, crust-building sear, and resting them on crispy smashed Andean potatoes. The real magic is the Aji Amarillo-Miso Huancaina sauce—a Peruvian classic supercharged with Japanese umami—all cut by a bright hijiki seaweed salsa criolla.
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Timeline
Ingredients
- 1 lb Jumbo sea scallops (U-10 or U-12), dry-packed(Must be dry-packed. 'Wet' scallops are treated with phosphates and will not sear properly.)
- 1.5 lbs Small purple potatoes or fingerlings(Scrubbed and clean)
- 2 tbsp Neutral oil (like grapeseed)(Divided use)
- 1 tbsp Unsalted butter
- 1 tbsp Pisco or dry white wine(For deglazing/basting)
- 3 tbsp Aji amarillo paste(Found in Latin markets or online)
- 1 tbsp White miso paste
- 1/2 cup Evaporated milk
- 1/3 cup Queso fresco(Crumbled. Mild feta is an acceptable substitute.)
- 1 clove Garlic(Peeled and smashed)
- 1 tbsp Yuzu juice(Can sub lime juice in a pinch)
- 1/2 medium Red onion(Finely julienned)
- 1 tbsp Dried hijiki seaweed
- 1 Red fresno chile or rocoto(Finely diced)
- 2 tbsp Lime juice(Freshly squeezed)
- 2 tbsp Fresh cilantro(Finely chopped)
- To taste Kosher salt
Instructions
- 1
Preheat your oven to 425°F. Place 1.5 lbs small purple potatoes into a pot of heavily salted cold water. Bring to a boil and cook until they are completely tender and can be easily pierced with a fork. You want them soft enough to smash without falling apart into mash.
20 min
Tip: Starting potatoes in cold water ensures they cook evenly from the outside in. If you drop them into boiling water, the exteriors will turn to mush before the centers are cooked.
- 2
While the potatoes boil, let's make our Nikkei salsa criolla. Submerge 1 tbsp dried hijiki seaweed in warm water for 5 minutes until plump, then drain well. In a small bowl, toss the hydrated hijiki with 1/2 medium red onion, 1 red fresno chile, 2 tbsp lime juice, 2 tbsp fresh cilantro, and a generous pinch of kosher salt. Let it sit and macerate; the acid will take the raw bite out of the onion.
5 min
Tip: Hijiki adds a beautiful oceanic minerality and a satisfying slight crunch that bridges the gap between the Peruvian salsa and the Japanese seafood.
- 3
Time to build the umami bridge: the Huancaina. In a blender, combine 3 tbsp aji amarillo paste, 1 tbsp white miso paste, 1/2 cup evaporated milk, 1/3 cup queso fresco, 1 clove garlic, and 1 tbsp yuzu juice. Blend on high until completely smooth and velvety. Taste and adjust salt if necessary (the miso and cheese are already quite salty!). Set aside.
5 min
Tip: Why this works: Traditional huancaina relies on queso fresco for its lactic tang. By swapping in white miso for the usual saltine crackers used to thicken the sauce, we introduce a massive dose of glutamic acid (umami) that binds to the cheese's tang. It's a flavor bomb.
- 4
Drain the boiled potatoes. Transfer them to a heavy baking sheet. Using the bottom of a heavy glass or a measuring cup, gently smash each potato until it flattens but remains intact. Drizzle generously with 1 tbsp neutral oil and a heavy pinch of kosher salt. Roast in the preheated oven until the edges are exceptionally crispy.
15 min
Tip: Let the steam evaporate off the potatoes for a minute before smashing them. Less moisture means a crispier finish in the oven.
- 5
Pull 1 lb jumbo sea scallops, dry-packed from the fridge. Place them on a paper towel-lined plate and pat them aggressively dry on all sides. Just before cooking, season them generously with kosher salt.
2 min
Tip: Moisture is the mortal enemy of a hard sear. If there is water on the surface of your scallop, the pan's energy will be wasted evaporating that water rather than creating a Maillard-reaction crust.
- 6
Place a large cast-iron or heavy stainless steel skillet over high heat until smoking hot. Add the remaining 1 tbsp neutral oil. Carefully place the scallops in the pan, leaving ample space between them. Press down gently on each one for just a second to ensure full pan contact. Now, do not touch them for 2 full minutes. Let the brutal heat forge a dark golden crust.
2 min
Tip: If the scallop resists when you try to flip it, it's not ready. It will naturally release from the pan once the crust has properly formed.
- 7
Flip the scallops. Immediately drop the heat to medium. Add 1 tbsp unsalted butter and 1 tbsp Pisco to the pan. Tip the pan slightly and use a spoon to rapidly baste the scallops with the foaming, aromatic butter for about 45 to 60 seconds. Remove the pan from the heat immediately.
2 min
Tip: The Pisco deglazes the pan slightly and vaporizes rapidly, leaving behind a subtle floral note that pairs brilliantly with the sweet scallops and nutty brown butter.
- 8
To plate: Spoon a generous pool of the Miso Huancaina sauce onto the center of each warm plate. Arrange a few crispy smashed purple potatoes in the sauce. Place your beautifully seared scallops on top of the potatoes. Garnish with a bright tangle of the Hijiki Salsa Criolla over the top. Serve immediately.
3 min
Tip: Make sure your plates are slightly warm so the sauce doesn't seize up when it hits the ceramic.
Chef's Notes
Chef's note: Sourcing dry-packed scallops is non-negotiable for this dish. 'Wet' scallops are soaked in a sodium tripolyphosphate solution to plump them up and extend their shelf life. When they hit a hot pan, they dump all that milky liquid and wind up boiling in their own juices. You'll never get that gorgeous, caramelized crust. Talk to your fishmonger and insist on dry-packed!
Kenji Nakamura
Where Japanese precision meets global flavors
I trained in Tokyo for eight years, mastering the discipline of washoku—traditional Japanese cuisine. But I got restless. So I cooked my way through Southeast Asia, spent a year in Mexico City, and fell hard for the food of Peru. Now I see connections between cuisines that others miss: the umami in dashi and fish sauce, the heat in shishito and Szechuan peppercorns, the way Japanese technique can unlock flavors from any tradition. I'm always fermenting something.