1/2 lb. cream of tartar
1/4 lb. bicarbonate of soda
1/4 lb. corn starch
Weigh all the ingredients accurately. If the cream of tartar and the
bicarbonate of soda are to be purchased from a druggist, it will be
better for him to weigh them than for the housewife, as he uses scales
that weigh accurately. After all the ingredients are weighed, mix them
together thoroughly by sifting them a number of times or by shaking them
well in a can or a jar on which the lid has been tightly closed. The
baking powder thus made should be kept in a can or a jar that may be
rendered air-tight by means of a lid, or cover.
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