saleratus

Ignorance, not wilfulness, may be at the causal bottom of a batch of bread which is half saleratus, and a stew of venerable hens which is one-third feathers.

From The Atlantic Monthly, Volume 14, No. 81, July, 1864 by Various

Some use bolted meal; most raise bread by fermentation; many use salt; some saleratus, or carbonate of potash; and, in the country, many use milk instead of water to form the paste.

From Vegetable Diet: As Sanctioned by Medical Men, and by Experience in All Ages Including a System of Vegetable Cookery by William A. (William Andrus) Alcott

Buttermilk or sour milk with a tea spoonful of saleratus, is better to mix with the Indian meal, than sweet milk and eggs.

From The New England Cook Book, or Young Housekeeper's Guide Being a Collection of the Most Valuable Receipts; Embracing all the Various Branches of Cookery, and Written in a Minute and Methodical Manner by Anonymous

I have been raised on too much saleratus in the bread, and I know it.”

From Molly Brown's Post-Graduate Days by Nell Speed

Dissolve a tea spoonful of saleratus, in a tea cup of milk, and strain it into the cake.

From The New England Cook Book, or Young Housekeeper's Guide Being a Collection of the Most Valuable Receipts; Embracing all the Various Branches of Cookery, and Written in a Minute and Methodical Manner by Anonymous