1 quart of flour.
2 heaping table-spoonfuls butter, chopped up in the flour.
2 cups cold water.
2 teaspoonfuls cream tartar, sifted thoroughly with the flour.
1 teaspoonful soda, dissolved in boiling water.
A little salt.
When flour, cream of tartar, salt and butter are well incorporated, stir the soda into the cold water, and mix the dough very quickly, handling as little as may be. It should be just stiff enough to roll out. Stiff soda biscuits are always failures. Roll half an inch thick with a few rapid strokes, cut out, and bake at once in a quick oven.