Preheat the oven to 450 degrees F.
Clean the peppers and cut them into quarters or 8ths, depending on the size of the peppers.
Remove all the inside membrane as well as the seeds.
Lay the peppers skin side up on a parchment lined baking sheet.
Roast the peppers for approximately 15 – 20 minutes or until soft. In the last few minutes of cooking, turn the oven to broil, and broil the peppers until the skins develop a black char on them, and blister.
Remove the peppers into a bowl and cover with plastic wrap, tea towel or dish towel.
Let the peppers sit in the bowl for 30 minutes to cool.
When the bowl is cool, remove the plastic wrap and begin sliding off the charred portions of the pepper’s skin.
Place the roasted peppers into a glass jar or airtight container, and cover the peppers in olive oil.