At our local farmers market, many of the booths go beyond selling just fresh produce. There are also people selling their fresh baked goods from their own kitchen, their own home-canned preserves and jams and jellies, and so on.
The thing is, I've made all of that stuff in my own kitchen. I've baked countless loaves of homemade bread. I've made many jars of jelly and jam. I've made homemade salsa. I've made handmade soap. I've made homemade laundry soap. I could sell all of that stuff at a farmers market without any issues.
Obviously, you need to check with the rules of your local farmers market regarding what you can make yourself and are allowed to sell, but it's certainly an opportunity for you if you enjoy making things like this at home.
