To prepare viburnum jam with seeds, prepare the berries in advance: sort the viburnum from twigs and debris, rinse well and let excess water drain. Sterilize the canning jars: pour 2-3 tablespoons of water into each jar and microwave at maximum power for 5-7 minutes. Boil lids for jars and dry.
Boil the syrup. Pour water into a saucepan or jam bowl and bring to a boil. Add sugar and cook over medium heat for 5-10 minutes until the sugar is completely dissolved.
Add berries. Pour viburnum into the hot syrup and cook for 5 minutes after boiling. Then remove from heat and leave to cool for 12 hours. After this, put the container with jam on the fire again, bring to a boil and turn off the heat.
Divide the jam into jars. Transfer the hot jam into dry, sterilized jars and close with clean lids. Turn the jam jars upside down until they cool completely. Store viburnum jam in the refrigerator or cool cellar.
Serve viburnum jam along with hot pancakes and tea for a delicious vitamin-rich breakfast.