Prepare a thick-bottomed bowl, scale and blender. Sterilize jars and lids. Peel the pumpkin from the peel, seeds and inner fibrous part of the pulp. Wash and cut into medium cubes.
Place the pumpkin pieces in the prepared bowl. Pour in water, add sugar. Bring to a boil and cook for 15 minutes.
Add citric acid. Cook the jam for another 5 minutes on low heat. Do not forget to stir periodically so that the mixture does not stick to the bottom of the dish.
When the pumpkin has softened, puree it in a blender. Then put the jam on low heat until the mass thickens. This will take approximately 25 minutes. Determine the degree of thickness according to your preferences.
Pour the hot jam into the jars and screw on the lids. Cover with a blanket and leave the workpiece to cool completely.
Place the jam in a bowl and serve with tea.