This section is from the book "Soyer's Standard Cookery", by Nicolas Soyer. Also available from Amazon: Soyer's Standard Cookery.
One cup of flour, one-quarter teaspoonful of salt, seven-eighths of a cup of milk, two eggs, one-half a teaspoonful of melted butter.
Mix salt and flour; add milk gradually, in order to obtain a smooth batter. Add egg beaten until light, and butter; beat two minutes - using Dover egg-beater - turn into hissing hot buttered iron gem pans, and bake thirty to thirty-five minutes in a hot oven. They may be baked in buttered earthen cups, when the bottom will have a glazed appearance. Small round iron gem pans are best for pop-overs.
 
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