First of all in a mixing bowl gather flour, baking soda. Combine nicely.
In a bowl add yeast, sugar, and salt. Add ¼ cup warm water and mix nicely. Cover it and keep it for 5 minutes. After 5 minutes yeast should be bubble up and frothy.
Now add this yeast frothy water, 2 tbsp oil, yogurt in dry ingredient. You need ¾ cup extra water to knead the dough. Knead till everything bind together nicely.
Apply little oil on top and cover with aluminum foil. Keep it in a warm place for at least one hour. The dough will double up in an hour.
After an hour punch the dough to release air and knead for a minute. Whole wheat yeast naan dough is ready for further use.
Divide the dough into equal parts. I made 6 naans with this dough. Heat a griddle on medium heat.
Dust the rolling surface and roll into 6-7″ oval shape. Transfer it to the hot griddle.
Cook for 1 minute and then flip it over. Cook again for 1 minute. After this transfer it to a plate.
Spread the butter on hot naans and sprinkle chopped coriander. Yeast naan or whole wheat yeast naan is ready to serve.