Step 1

For the tomato salsa, combine all ingredients in a bowl and set aside.

Step 2

For the sour cream sauce, combine all ingredients in a bowl and set aside.

Step 3

For the batter, whisk eggs in a bowl until well combined, then fold in flour, bicarb and 2 cups (500ml) iced water (the batter should be a thin consistency – add a little extra water if necessary).

Step 4

To make the fish, place flour in a shallow bowl and season well with salt flakes and freshly ground black pepper.

Step 5

Half-fill a deep-fryer or large saucepan with sunflower oil and heat to 200°C (a cube of bread will turn golden in 35 seconds when the oil is hot enough). In batches, dust fish in the seasoned flour, then dip into batter, allowing excess to drip off.

Step 6

Deep-fry coated fish, turning halfway, for 2-3 minutes or until golden and crisp. Remove with a slotted spoon and drain on paper towel. Repeat with remaining fish.

Step 7

Meanwhile, heat a frypan over high heat and warm tortillas for 1 minute each side or until heated through. Wrap hot tortillas loosely in a clean tea towel while you warm remaining tortillas.

Step 8

Fill each taco with some fried fish and shredded cabbage. Top with salsa, drizzle with sour cream sauce and sprinkle with coriander. Serve immediately with lime wedges and pickled jalapenos.