1	Pkg.	Dry yeast
1/2	Cup	Warm water
5	Cups	Self-rising flour
3/4	Cup	Shortening
1	Tsp.	Baking soda
2	Cups	Buttermilk
3	Tbls.	Sugar

Combine yeast with warm water and stir to dissolve; let stand 5 minutes or until bubbly. Set aside. Place flour in a large bowl; cut in shortening with a pastry blender until mixture resembles coarse meal. Dissolve soda in buttermilk; add to flour mixture, stirring with a fork. Stir in sugar and yeast mixture, mixing well. Cover tightly and refrigerate 8 hours or overnight. Turn dough out onto a lightly floured surface and knead 4 to 5 times. Roll dough to 1/2" thickness and cut with a biscuit cutter. Place biscuits on greased baking sheets. Cover and let rise one hour. Bake at 400° for twelve minutes or until lightly browned. Makes about 4 dozen.