This is like a coffee cake and tastes alot like a cobbler. It is an old recipe from my grandma. If you can't find boysenberries, you can substitute with blackberries. This is delicious served with a scoop of vanilla ice cream.
In a bowl combine flour salt and baking powder.Cream the shortening and 1 cup of the sugar in a mixing bowl. Add the flour mixture to the shortening mixture alternately with the milk , beat until smooth. Grease a 13x9 pan and spread in the batter. Cover the batter with the 2 cups boysenberries. Cover the berries with the remaining 1 cup sugar and dot with butter. Pour 1 cup hot water over the berries. Bake at 325 degrees for about 1 hour.