Preheat oven to 150°C.
Line oven tray with baking paper.
Place sheets of nori, shiny side up on trays (with no overlap, use separate trays, or cook separately).
Combine soy sauce and sesame oil in bowl and brush onto each sheet before placing in the oven to bake for 8 minutes.
Transfer to wire racks to cool and repeat with remaining sheets.
Cut each sheet into six pieces and serve straight away or store in an airtight container.
Combine together the orange rind, chilli and pepper.
Sprinkle over sheets just before they go in the oven.
If left out these chips will go soft, so store in an airtight container or lunchbox.