Add baking soda and baking powder to your sifted flour. Mix.
Add salt and lightly mix.
Add oil and buttermilk. Mix just to combine all.
Transfer onto the floured surface and knead a little to form a ball. Place your dough in a pan lined with parchment paper. This one works well for any size needs.
Spread the dough a little to fill the pan lined with parchment paper. Bake for 35-40 min.