How to Make It
Place the blackberries and sugar in a medium saucepot with 1 cup water, and bring to a boil over medium heat for 3 to 4 minutes, stirring, until it thickens to a sauce. Reduce the heat to low and keep the blackberries warm as you make the dough.
In a large mixing bowl stir together the flour, salt, sugar, and vegetable shortening with ¼ cup water. Add more water, up to ¾ cup, as needed until the dough is loose and soft enough that you can scoop it out with a spoon.
Increase the heat of the blackberry pot to medium.
Scoop 1 teaspoon dough at a time and drop it into the saucepot of blackberries. When the dough rises to the top of the blackberry sauce, use a tablespoon to turn it so the dough cooks evenly as it hardens. Drop in as many teaspoons of dough as you can at the same time, but leave a little room between them for the dough to swell. When all the dough is turned and has the consistency of a doughnut, the blackberry dumplings are ready to eat.