[header] How to make jalapeño jelly [title] Choose ripened jalapeños for the best results. [step] When you are shopping for jalapeños look for the ones which are about 4 to 6 inches long, firm to the touch, and bright green. These are the common features of ripened jalepeños and will make the best flavored jelly. 
[title] Remove the stems and seeds from all of the jalapeños. [step] Cut your jalapeños into halves, exposing the seeds, and use a spoon to scrape all of the seeds out.