To roast the jalapenos, preheat the broiler in your oven and place peppers on a baking sheet. Broil on all sides, flipping once charred. Remove and let cool completely. Additionally, you can grill or even “roast” the peppers on your gas stove (um, I did this) – whatever is easiest for you! Once cooled, chop of the tops and slice the peppers down the middle, remove the seeds and chop.