One of the biggest treasures I have found online is from Michigan State University. It's a site called Feeding America and features over 70 American cookbooks from the late 18th to early 20th century. I really can't begin to tell you how much computer space I have in old cookbooks. If only I could have physical copies of them ALL.
Here's one of the first I found (and tried recipes from). Please consider investigating the old cookbooks that are out there still. They can be invaluable, especially since they teach us so many things we have lost over the generations.
Miss Parloa's New Cookbook: A Guide to Marketing and Cooking. New York:
C.T. Dillingham, 1882, c. 1880.
Here are just some of the recipes, which are fantastic!
Nearly fill a jar with ripe berries, and fill up with good molasses. Cover, and set away. In a few weeks they will be ready to use.