American Cookery

Yeah, it was.

And that one was called American Cookery.

She couldn't write it herself because she was illiterate and she got a transcriber to help her.

Then, mystery here, the transcriber used their own preferences on amounts of things and kind of sabotaged her own words or redesigned the recipes.

It was one of the earliest forms of chemical leavening used in cooking.

One of the first American cookbooks to document its use was American Cookery, published in 1796 by Amelia Simmons.

This book is widely considered the first known cookbook written by an American author for an American audience.

Amelia included recipes for griddle cakes and johnny cakes that used pearl ash as a leavening agent.