Buckwheat Crepes by GovindaJi

2 cups Buckwheat flour, 1 cup of Potato or Tapioca starch, 1/2 tsp baking soda, 1/2 tsp salt, 2 Tbs oil or butter melted, 1 cup buttermilk ( you can also substitute with yoghurt and a bit of water) and 2 or 3 cups of milk to get the right consistency, which is a fairly runny batter.