Cut a piece of parchment paper in the shape of a square. Slice the onion thinly. Julienne the carrot. Cut the bottom of shimeji mushroom and tear into bite-sized pieces.
2. Step
Place the salmon at the center of the parchment paper. Season with salt and pepper.
3. Step
Place onion, carrot and shimeji in that order.
4. Step
Sprinkle sake and put the butter on top.
5. Step
Bring up the top and the bottom corner of the paper. Fold the top corner for 3 to 4 times. Twist the ends.
6. Step
Place the salmon packet on a microwave safe plate and microwave for 4 minutes, or cook in 350°F (180°C) oven for 20 min.
7. Step
Open the parchment paper carefully and drizzle soy sauce on top.
