This is an old photocopied recipe that looks like it originated in Hamilton, Indiana. The recipe is attributed to Letha Teegarden. It is my favorite cookie and the one I make most often.
*Sour Milk substitution= sweet milk + 2 Tbsp vinegar to make 1 cup.
I always use the substitution. For the flavoring I add a Tbsp of vanilla.
I'm too impatient to wait for the dough to chill, so I make them into drop cookies... I put the dough in the freezer in between batches to make it easier to work with.
I have successfully substituted half the flour with white whole wheat flour and no one could tell the difference.