Making your own Mulberry syrup is super easy.
Wash your mulberry's.
Put your mulberry's in a pot. It is ok if they have the stem on them.
Add just enough water to over them berries.
Bring to a boil and boil for only about 20 or 30 seconds. Remove from heat.
Mash the berries.
Cover a sieve with cheese cloth and place it over a bowl.
Slowly pour your mulberry juice through the sieve.
Stir the mulberry's to help the water to drip through. Press the berries lightly and let it sit for a bit.
Measure out how much juice you have and use the same amount of sugar as you have in juice.
Place in a pot with the sugar and just boil until it becomes a syrup. About 20 to 30 minutes or so.
Let is cool for a few minutes and then place in jars.