1 quart of flour
 3 Tb butter
 1/2 tsp soda, dissolved in hot water
 1 saltspoonful salt      (sorry - donUt know the modern equivalent)
 2 cups sweet milk
 Rub the butter into the flour, or, what is better, cut it up with a
 knife or cho pper, as you do in pastry; add the salt, milk, soda,
 mixing well. Work into a ba ll, lay upon a floured board, and beat
 with the rolling-pin half an hour, turnin g and shifting the mass
 often. Roll into an even sheet, a quarter of an inch thick, or less,
 pr ick deeply with a fork, and bake hard in a moderate oven. Hang them
 up in a musl in bag in the kitchen for 2 days to dry.