This section is from the book "My Best 250 Recipes", by Mrs. Sarah Tyson Rorer. Also available from Amazon: My Best 250 Recipes.
Scald a pint of cream; cut a vanilla bean in halves, scrape out the seeds, and rub with the sugar; then add the sugar to the cream; stir until dissolved and cold; when cold add another pint of unscalded cream. When the mixture is icy cold turn it in the freezer, pack with salt and ice, using one-third salt to two-thirds ice. Turn the crank slowly for a moment until the cream is icy cold, then stir rapidly until it is frozen.
Remove the dasher; repack and stand aside for an hour or two to ripen.
Add eight ounces of powdered sugar to one quart of cream. Stir until the sugar is dissolved, and add a dessertspoonful of good extract of vanilla. Turn into the freezing-can; stir slowly at first until the cream is icy cold, then beat more rapidly until it is thoroughly frozen.
 
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