Sift flour, baking powder, salt and soda into a large bowl.
Cut in shortening.
Add buttermilk and yeast mixture.
Mix well.
Turn dough out onto a floured board and knead 2 or 3 times.
Roll dough out 1/2 inch thick.
Cut biscuits. Let set 45 minutes to 1 hour to rise.
Bake at 400℉ for 12-15 minutes.
Notes
Note: Dough may be stored in a plastic bag in the regrigerator until needed.So, I never came out to my evil grandmother, for two reasons. One, my dad asked me please not to because he didn’t want to deal with her shit, and two, see “evil”. Not f*cking worth it. I was glad she died before I got married.These were her mama’s biscuits, and her mama was a mean old woman, too. I’ll spite ‘em both and post it for y’all.