Sterilize the jar with the lid in the oven. Place the jar with the lid in a preheated oven at 110C for 20 minutes.
Cut out the core of the pepper and remove the seeds. Cut the pepper into wedges.
Place them in a baking dish, brush with oil and season with spices.
Place in the oven to bake for 30 minutes until the peppers are soft.
Place the peppers in layers in a sterilized jar and close.