Thoroughly wash the swiss chard under cold running water making sure to get into the crevasses as they may have dirt and other undesired bits.
Cut off any undesired pieces off the swiss chard. What I also like to do is to cut the bottom of the stem curved side down, and pull upwards in order to remove the stringy part of the stem.
To create an ice bath, fill a large bowl with cold water and ice, and set aside.
Fill a large pot with water and bring to a boil. Once the water has reached the boiling point, Drop the swiss chard in and blanch for 1 minute. Using tongs, quickly remove the swiss chard from the boiling water and transfer into the ice bath. You may need to repeat this step if this swiss chards are too large to fit all at once into the boiling water.
To create the stuffing, begin by aligning the parsley stems together to create a tree shape. You want all the leaves to be aligned on one side, and the stems on the opposite side. Tie using a rubber band or a twisty tie. Fill a large bowl with cold water and dunk the leafy part of the parsley into the cold water several time. Discard the water and repeat this process as necessary until you find no more dirt and unwanted remains in the water. If you are using organic parsley, you may want to fill a large bowl with cold water, put about 1 to 2 tablespoons salt in the water, and drop the leafy part of the parsley in the salty water. Let it sit for 10 minutes, and then continue with the process listed above. Soaking the parsley in salty water will kill off any bugs that may be hiding in between the leaves, and drop them into the water.
After you have thoroughly rinsed the parsley, set it aside in a dish rack, stems down and leaves up, and let it drain.
Rinse and drain the rinse under cold water using a fine sieve. Do this about 3 times. Transfer into a large bowl.
Into the bowl containing the rice, add in the chickpeas, diced tomatoes, diced onions, crushed garlic, dried mint, sumac, 1 ½ teaspoon salt, black pepper, lemon juice, and olive oil.
Once the parsley has completely drained, remove the twisty or rubber band, and hold tight. Using a large sharp knife, chop the stems off as close to the leafy part as possible. Carefully hold the parsley at an angle that will allow you to chop the leaves as fine as possible. Pass the knife over the leaves as you hold it tight on the opposite side and chop.
Add the finely chopped parsley into the bowl with the rest of the ingredients and mix until well combined.
Drain the swiss chard leaves. Cut the long stems off where they meet the leafy part, and reserve the stems for the sauce.
Place the leaf pointy side away from you and wide end facing you. Place about 1 to 2 tablespoons of filling into the middle of the leaf and spread it to form a log shape leaving about ½ inch to 1 inch of the leaf exposed on each end of the stuffing log. Fold the side that is facing you over the stuffing. Fold the left and right side of the leaf over the stuffing. Firmly, but gently begin to roll the leaf over the stuffing as if you are rolling a tortilla. Beginning from the side that is facing you and rolling in the direction that is away from you. Repeat this step with the remaining swiss chard leaves. If the leaf is too large, you can choose to chop it in half before you begin this process, and if the leaf happens to be small, you’ll want to use less filling.
Line up the rolled leaves in a large pot, seam side down. Season with salt, and cover with water or vegetable broth with the liquid of your choice being about ½ an inch over the rolls. Cover with a small ceramic plate, and cover the pot. The ceramic plate will stop the leaves from floating over the water, opening up, and losing all their stuffing.
Place pot on high heat, and bring to a boil. Once it has reached the boiling point, reduce heat to medium low and let it cook for 30 minutes, or as long as the rice of your choice requires to be cooked.
Meanwhile, we will work on the sauce. This is why the total time is listed as 1 hour and 30 minutes because as the rolls cook, we will be working on our sauce.