Recipe: To Make Cayenne Pepper

Take ripe chillies and dry them a whole day before the fire, turning them frequently. When quite dry, trim off the stalks and pound the pods in a mortar till they become a fine powder, mixing in about one sixth of their weight in salt. Or you may grind them in a very fine mill. While pounding the chillies, wear glasses to save your eyes from being incommoded by them. Put the powder into small bottles, and secure the corks closely.

Directions for Cookery, In Its Various Branches.
Ladies and Professional Cooks.
Containing
The Whole Science and Art of Preparing Human Food. (Year 1840)