• In a high-powered blender, combine the tofu, haricot beans in their liquid, miso paste (or msg), salt, nutritional yeast, oil and water until you have a smooth paste.
• Add the vital wheat gluten to the bowl of a stand mixer fitted with the paddle attachment. Add the tofu mixture and mix on a low speed until the two come together in the form of a dough.
• Switch the paddle attachment to a dough hook and mix on a medium/high speed for 10-12 minutes. Stay close by as the mixer may shuffle across the counter top as the dough is tough to work. You’ll also need to be very careful your mixer’s motor doesn’t burn out. This kneading of the dough is crucial in developing the gluten and proteins in the seitan and shouldn’t be skipped. The longer and harder you work it, the more fibrous and chicken-like the final product will be.
• Once your seitan has been kneaded long and hard, remove it from the mixer and cut it in half. Wrap each “loaf” very tightly in 3-4 layers of heavy-duty foil. You want it to be nice and compact inside to stop it expanding inside as this will promote sponginess rather than the shreddable texture we’re after. The multiple layers of foil will also stop water getting inside. 
• Next, fill a pressure cooker with plenty of water (about 3/4 of the way full) and bring to a boil. Carefully drop your seitan into the cooker and put the lid on. Cook on a medium/high heat for 40 minutes. Once the time is up, switch off the heat and leave it to cool completely.
• Once cool, remove the seitan parcels from the cooker and refrigerate for at least 8 hours or up to 48 hours.
• Unwrap and check out that amazing texture when you pull it apart. Your seitan is now ready to use in your favourite vegan chicken recipe.

To marinate the seitan pieces

• Combine the ingredients for the seitan marinade until smooth. Add the seitan chicken pieces and gently mix until coated. Cover with cling film and refrigerate for 30 minutes.
• Heat the oil in a non-stick frying pan and carefully add the seitan chicken pieces. Cook until golden on all sides. You might need to do this in batches to avoid overcrowding the pan. Place the pieces onto a plate and set aside whilst you make the sauce.

For the butter chick'n curry

• Heat the oil in a large non-stick pan. Add the nigella seeds and chopped onion. Sauté until translucent. Next, add in the ginger, garlic, chillies and tomato paste. Cook for 2 minutes.
• Add in the fresh tomatoes, ground coriander seeds, garam masala, ground cardamom seeds, almond butter, coconut milk, kasoori methi and brown sugar or agave. Give everything a thorough stir and cover with a lid. Cook for 10-15 minutes on a medium heat. Remove from the heat and allow to cool.
• Transfer the tomato mixture to a blender and blend until very smooth. Strain the mixture through a sieve, back into the same pan. Season with salt to taste. Switch the heat back on and add the golden seitan chicken pieces. Bring to a gentle boil and simmer for 5 minutes with the lid on. Garnish with fresh coriander, more kasoori methi and a splash of coconut milk, if desired.