In Tesco-Lotus, these are named simply "Green Peppers" and they are delicious as well, but they have a skin that needs to be removed, and the roasting makes that easy and gives a great flavor the the peppers/chilies.
In Tesco-Lotus, these are named simply "Long Green Peppers" and they are also delicious. These are the two types I am going prepare by roasting. There is also a red version of this aptly named "Large Red Pepper."
Preheat your broiler to 200 C (400 F), for those with counter top ovens, use the top coil only. Position the rack 4 to 6 inches from the heating coil/burner. Line a baking sheet with foil.
Wash the chilies and dry with paper towels. Place the chilies on the baking sheet in a single layer.
Place the baking sheet in the broiler or oven and cook for 3 to 5 minutes, you are looking for about 75% charred and blistered skins on the chilies.
Using tongs, turn each chili over and cook again for 3-5 minutes, also looking for 75% charred and blistered skins.
Remove the baking sheet from the oven, and quickly place the chilies in a food safe zip lock bag, then seal the bag and let them sit for 15 minutes. This steams the chilies which will help in peeling them.
Trim of the stem end of the chilies and pull the skin off. Slice in half lengthwise and scrape out the seeds and inner membranes with a spoon.
Slice in piece in half lengthwise, then chop or dice.
Allow to cool to room temperature, then place in small freezer bags or in small freezer containers, or in an average size ice cube tray, and when they are frozen, transfer the 'cubes' to a freezer bag.