This section is from the book "The White Ribbon Cook Book", by Kathryn Armstrong. Also available from Amazon: The White Ribbon Cook Book.
One pint buckwheat flour, 1 qt. water, salt according to taste, 1 gill homemade yeast.
Mix the water (which should be lukewarm if the weather is cold) with the meal; add the salt and yeast; beat it well; when light, bake them on a griddle. Grease the griddle; pour on a little of the batter; spread it so as to form a cake about the size of a breakfast-plate; the cakes should be very smooth at the edges. When they are done on one side, turn them; when brown on both sides, put some butter on the plate, put the cake on it, butter the top, bake another and put on it, butter hot, and send them to the table. Buckwheat cakes are much better if they are sent to the table with only 1 or 2 on the plate.
 
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