Buttermilk Biscuits

1/4 c shortening
1/4 t baking soda
2 c self-rising flour
3/4 c buttermilk
Cut shortening into flour.
Stir soda in milk and pour into flour and shortening.
Stir until well blended. Pour out onto a floured surface and knead 12 to 15 times. Roll out and cut.
Place on a baking sheet and bake at 450 degrees F. until brown.