Blackberry Preserves - cooking recipe

Ingredients

equal amounts of fruit and sugar

Preparation

With this recipe one does not use Sure-Jell, just fruit and sugar.
To keep berries whole, place berries in pan with sugar on top.
Don't stir unless you want berries to cook apart.
With this recipe, cook about 2 hours.
Boil until syrupy.
To test, place a small amount on spoon and allow to cool.
If it runs, keep testing every 10 minutes.
When thick, can as usual.