1 Preheat oven to 180°C. Tear off eight 30cm pieces of baking paper. For each parcel, lay 2 sheets together on a flat surface. 2 Put a breast fillet on each double layer of baking paper. Top each with an equal portion of enoki mushrooms, spring onion, ginger and ¹⁄3 cup peas. Drizzle combined teriyaki and mirin evenly over the top of each. 3 Bring tops of paper together and fold over a few times, then fold in sides and tuck under, securing with string. Put prepared parcels on an oven tray and bake for 20-25 minutes.