Arctic char tostadas: a delicious twist on a classic dish

Ingredients for Arctic char tostadas

• 45 ml fish sauce

• 240 ml rice vinegar, unseasoned

• 40 g spring onions, sliced

• 3 cm piece ginger, peeled, finely grated

• kosher salt

• 1 g lemon zest, finely grated

• 120 g soured cream or whole-milk ricotta

• kosher salt

• 225 g boneless arctic char or salmon fillet

• extra-virgin olive oil, for drizzling

• 4 tostadas (4"–6")

• coriander leaves with tender stems

• sliced serrano chiles

• capers

• lime wedges, for serving

How to make Arctic char tostadas

1. Heat a small saucepan over medium heat. When hot, pour in 1 tablespoon of fish sauce and allow it to bubble vigorously, thickening and darkening slightly for about 30 seconds. Repeat this process with the remaining fish sauce, adding it 1 tablespoon at a time.

2. Carefully add the vinegar to the saucepan (it may spatter), then transfer the mixture to a small bowl and allow it to cool. Stir in the scallions and ginger. Taste and season with salt as needed.

3. Preheat the oven to 150°C (fan) or 160°C (conventional).

4. In a small bowl, mix the lemon zest into the cheese and season with salt, then set aside.

5. Place the fish on a rimmed baking tray and drizzle lightly with oil; season with salt. Bake until just opaque throughout, about 5 minutes for char and 8–10 minutes for salmon.

6. Remove the fish from the oven and gently break it apart into large flakes. Drizzle with the prepared vinaigrette.

7. Divide the reserved cheese mixture among the tostadas. Top with the fish, followed by the cilantro, chiles, and capers. Serve with lime wedges.

8. The vinaigrette can be made up to 1 week in advance. Cover and chill until needed.

Disclaimer
While every effort has been made to ensure the information is accurate and up to date, individual needs may vary and dietary requirements can differ based on personal health conditions. Always check food labels and allergen information before preparing or consuming any recipe. If you have specific health concerns, allergies, intolerances, or are following a medically prescribed diet, seek advice from your GP, pharmacist, or a registered dietitian before making significant changes to your diet or lifestyle.