Turn the oven to 220℃ ( 430℉) fan bake. In a heatproof bowl, soak the cashews in boiled water, set aside.
Pat the tofu dry with paper towels or a clean tea towel, then slice each tofu into 8 fingers (giving you a total of 16). In a shallow dish mix together the lemon zest and juice of one lemon, white wine vinegar, Dijon mustard and ground black pepper. Place the tofu in the dish and leave to marinate.
In a large pot, cover the potatoes with water, bring to a boil, reduce the heat and boil for 25 minutes or until the potatoes are tender. Drain and mash the potatoes with a few splashes of soy milk, and finally, whisk with a fork for a fluffier finish. Season to taste.
Meanwhile, to make the batter, in a medium bowl whisk the plain flour and salt with 200 ml of soy milk. In another bowl empty the breadcrumbs.
Take the tofu out of the marinade and drop them into the batter, toss to coat. Transfer to the breadcrumbs and coat well, place all breadcrumb-coated tofu to a lined baking tray. Bake for 25 minutes.
To make the tartare sauce, in a high-speed blender, blend the drained cashews, ¾ cup water, onion powder, garlic powder, parsley, salt, dill, zest and juice of one lemon until smooth. Now add the chopped capers and gherkins, mix well and chill until needed.
In a heat-proof bowl, pour boiled water over the peas, leave for 5 minutes. To make the pea vinaigrette mix together the white vinegar, maple syrup and mint, season to taste. Drain the peas and mash (you could mash roughly using a stick blender), then stir through the vinaigrette.
Serve the ‘fish’ fingers with a dollop of mashed potatoes, mashed minted peas and lashings of tartare sauce. Enjoy