What do you do on the weekend with a half-pint of buttermilk that needs to get used? Well, make buttermilk biscuits, of course!
2 cups flour
4 teaspoons baking powder
1/2 teaspoon salt
1/2 cup shortening, cut in small pieces
2/3 cup buttermilk
Preheat oven to 450 degrees Fahrenheit.
Mix together dry ingredients, then add the shortening and continue mixing until it looks like coarse corn meal. Slowly add the buttermilk until dough is just barely mixed. Dump contents on a lightly floured surface and knead for 1-2 minutes. Roll out to a thickness of 3/4-inch, then cut out biscuits using a floured mug/glass and place on cookie sheet.
Bake in preheated oven until golden, about 8-10 minutes.
Note: I actually used bacon grease for this batch, and they turned out delicious but not quite as fluffy as with shortening.