I roast them in the oven - it's a lot easier when you have a lot of them. Turn on the broiler. Remove the stems, seed them if you want, cut them in half, and put them, cut side down, on a cookie sheet. Put under the broiler for 8 minutes, remove peppers to a bowl, cover with plastic wrap and let steam; I usually leave them for 15 minutes. Then peel. You can use them as is, or freeze for later. HTH.
Anyplace where people argue about food is a good place.
~ Anthony Bourdain, Parts Unknown, 2018