"Remaining buttermilk" refers to the amount of buttermilk that is left after a certain portion has been used or taken out.
Full definition
Dip turkey
into remaining buttermilk mixture, allowing excess to drip off, then pack moistened flour mixture firmly onto turkey (when you add buttermilk to flour, it starts to clump up slightly, so you'll get more jagged / crispy / awesomely flavored edges).
Dip chicken
into remaining buttermilk mixture, allow excess to drip off, then pack moistened flour mixture firmly onto chicken.
Add the remaining dry ingredients and beat, then stir in
the remaining buttermilk and 1 tablespoon of lemon juice.
Add the remaining half of the flour mixture followed by
the remaining buttermilk.
Add the remaining dry ingredients and
remaining buttermilk.
Discard
any remaining buttermilk mixture from the Soak.
Add another 1/3 of the flour, mix then
the remaining buttermilk and mix, then the remaining flour and mix until everything is fully incorporated.
Next, slowly mix in blended raisins and brown sugar mixture, and
the remaining buttermilk.
Once this mixture is very well ground, add
the remaining buttermilk and blend it well.
Pour
the remaining buttermilk mixture over the soaked cake, slice and serve!
Repeat with
remaining buttermilk and flour.
If the dough is too dry to come together, mix in
the remaining buttermilk a tablespoon or two at a time until the dough can be formed into a ball.
Add
the remaining buttermilk mixture and a packet of dry instant vanilla pudding and beat just until combined.
Brush
the remaining buttermilk on top, and bake for 15 minutes, or until golden.
Butter can be made much lighter and more stable by clarifying it into ghee which involves removing the milk solids and
remaining buttermilk.
Add the remaining dry ingredients followed by
the remaining buttermilk / kefir mixing just until incorporated.
Mix in the remaining flour mixture, then
the remaining buttermilk.
Also before you refrigerate, it is a good idea to rinse off
any remaining buttermilk, which can spoil faster than the butter.