Sift together flour, baking powder, baking soda and salt.
In a mixing bowl, add oil and sugar and beat till the sugar mixes.Add vanilla essence and mix.
Add dates, flour and Chia gel. Fold the batter.
Add buttermilk as required. The batter should be lumpy. Add just enough milk to make the batter lumpy. We don't want a ribbon consistency batter( like for cakes).
Fold in walnuts and transfer the batter to muffin tray.
Bake in preheated oven at 375 F or 190C, for 25-30 minutes.
Check for doneness by inserting a toothpick in one of the muffins.
Once done, take out the muffins from the tray and cool on wire rack.
Store in an airtight container when completely cools down.