Preheat the oven to 325 F.
"Crunchy and nutty, these crackers make a nutritious snack. Put your feet up after a hard day's work and enjoy a few with a glass of fresh lemonade.
Stir together the flour, oats, salt, and sugar in a large bowl or in the food processor. Cut in the butter until the mixture resembles coarse meal. Blend in enough of the milk to form a dough that will hold together in a cohesive ball.
Divid the dough into 2 equal portions for rolling. On a floured surface or pastry cloth, roll as thin as possible, to about 1/16 inch thick. Using a spatula, rolling pin, or your hands, transfer the rolled dough gently onto a large baking sheet.
With a sharp knife, score the dough into 2-inch squares without cutting all the way throug the dough. Prick each square 2 or 3 times with the tines of a fork.
Bake for 20 to 25 minutes, turning over after 15 minutes, until crisp. Cool on a rack. Break into individual crackers when cool. Yield: 50-60.