Grilled Mackerel with Shio Koji gets an extra boost of umami thanks to this Japanese all-purpose seasoning. The fish is quickly marinated then grilled until crispy and lightly charred on the outside and melt-in-your-mouth tender inside.
Prep Time10 minutesmins
Cook Time15 minutesmins
Total Time25 minutesmins
Course: Main Course
Cuisine: Japanese
Keyword: mackerel, shio koji
Servings: 2
Calories: 136kcal
Author: Namiko Chen
Ingredients
5.3ozmackerel(2 pieces)
2Tbspshio koji(I used Hikari Miso Shio Koji; you can substitute with 2 tsp kosher salt, but it will lack in umami)
In a flat container, put 5.3 oz mackerel and 2 Tbsp shio koji together and marinate for at least 30 minutes. You can adjust the marinating time according to the size of your mackerel fillets.
To Broil (recommended)
Preheat the broiler* with a rack placed about 6 inches (15 cm) away from the top heating element (in the middle) for 3 minutes. Line a baking sheet with foil for easy cleaning (brush the foil with some oil so the skin doesn‘t stick to it). Place the fish on the foil, skin side down. Broil it on Medium/High for 15–20 minutes, until the surface is blistered and browned a bit. You do not need to flip it. *Typical broiler settings: Low 450ºF/232ºC, Medium 500ºF/260ºC, and High 550ºF/288ºC.
To Bake (optional)
Preheat the oven to 425°F (218ºC) with a rack placed in the middle. For a convection oven, reduce cooking temperature by 25ºF (15ºC). Bake the fish on parchment paper for 20–25 minutes until golden brown, opaque, and flaky.
To Serve
Serve immediately with lemon wedges.
To Store
You can keep the leftovers in an airtight container and store in the refrigerator for up to 2 days.