Remove the cores of the pears then slice them the way you like.
Add pear and all the other ingredients into a pot.
Firstly cook on high heat. Turn the heat down to low when the water starts boiling.
Continue to cook for 15-20 minutes (see note 2).
To steam the pears
Cut off the top part of the pears (about ⅕ to ¼ of the total height).
Use a teaspoon to remove the cores. Fill the holes with rock sugar and half of the Goji berries.
Put the top part back (you can use toothpicks to stabilize the two parts) then put the pears vertically into 2 small bowls.
Sprinkle the remaining Goji berries around the pears. Steam on medium heat for about 40 minutes (see note 2).
Notes
1. You may or may not peel the pear. It doesn't change the taste but the texture of this dessert.2. Serve it warm or chill it in the fridge before serving. Both ways are delicious.