My great grandma used to make this sweet treat, I guess it's a Cape Sable Island original.
Throw some blueberries in a pot, a pound should do, heat them till they begin to liquify. Add a half cup of sugar if you want it sweet, less is best. Add a half cup of water, bring it to a slow bubbling boil.
While the heat rises grab two cups of flour and a tablespoon of baking powder, add water and stir till all the flour is moist. Toss the flour mix on top of the boiling blueberries.
Bring the temperature down to simmer. When the flour mixture expands to near overflowing of the pot chop the spongy blob up and dunk it, then spoon it out for dessert.