Put them in a Dehydrator, and let them dry until very hard (they should break if you bend them!). If they are a larger thicker walled
pepper cut them open to dry them in the dehydrator, or even cut them into rings . Buy yourself a coffee grinder/mill. You can buy one at Wally World (Walmart) for about 11 to 12 bucks.Its a good idea to use a differnt one from one you use to grind your coffee beans unless you like an extra kick in your coffee! Put your dry
peppers in the mill- Pulse it for a short bit if you want
pepper flakes. Hold it down longer if you want powder, for use such as chili powders. It works great!