Sourdough Biscuits
["6 c. flour, unsifted", "2/3 c. sugar", "4 tsp. baking powder", "2 tsp. salt", "1/4 tsp. baking soda", "2 c. buttermilk", "2/3 c. oil", "1 pkg. yeast, dissolved in 1 c. lukewarm water"]
["Mix all ingredients thoroughly.", "It may need more flour. Should be a dough that will hold its shape when dropped from spoon onto oiled pan.", "Bake 20 minutes at 400\u00b0."]
["flour", "sugar", "baking powder", "salt", "baking soda", "buttermilk", "oil", "yeast"]