Preheat outdoor or indoor grill to medium high heat.
In a large bowl, add the vegetable oil, soy sauce and sesame oil. Add peppers into the bowl and toss to combine.
Transfer peppers to a grill pan directly over the hot part of the grill. Grill for 6-8 minutes, flipping occasionally with a pair of tongs. Once the peppers are blistered and charred, carefully remove the grill basket and transfer the peppers to a serving bowl. Season with salt OR additional soy sauces and serve.
Note you can eat the top part - but don't eat the stem!