Put the yeast and sugar in a small bowl, then add the water and give it a good stir - make sure the water is pretty warm (over 40 degrees centrigrade) and mix with your hands, not a metal spoon. Leave for the yeast to activate.
1 teaspoon fast-action yeast, 1 teaspoon coconut sugar, ¾ cup warm water
Sieve the flour and the remaining dry ingredients in a larger bowl. Also add the nigella seeds now, if using them.
2 cups plain flour, ½ teaspoon salt, ¾ teaspoon baking powder, 1 teaspoon Nigella seeds
Once the yeast mix is bubbling (or foaming), add the vegan yoghurt and oil, give it a stir.
3 tablespoon coconut yoghurt, 2 tablespoon olive oil
Pour the wet ingredients into the bowl of dry ingredients and combine with a spoon to start with. The mix should be fairly sticky.
Add a little flour to the bowl, and to your hands, then gently knead the dough for a minute - if it's sticking to your hands too much, add a bit more flour (but only add enough to be able to successfully knead it without it sticking to you too much).
Lightly grease the large bowl you used to make the dough with some oil, then add the dough back into it and cover with a damp tea towel. Leave to rise in a warm place for 1-2 hours (2-4 hours if you're not using fast action yeast). You can get away with just an hour if you're in a rush.
Flour a clean work surface and empty the dough onto it.
Divide the dough into 4 even pieces. Give each ball of dough a quick knead, then leave to sit for 5-10 minutes. While the balls of dough are resting, prepare the garlic and fresh coriander (if using them).
Press or roll your dough balls into an oval shape. If you're using any toppings, like garlic or coriander, press them into the naan.
3-4 cloves garlic, Handful of fresh coriander
Heat up a cast-iron or non-stick pan over a medium heat.
Put one naan into the pan and cook for 1-2 minutes. You should see the dough start to bubble up - that's when to flip it. Cook it on the other side for another minute until both sides have some nice brown patches and have puffed up a bit.
Repeat 3 more times and then serve with a tasty curry!