If you've never been on the King Arthur Flour blog, please put it on your list of things to do. This blueberry buckle coffeecake is a straightforward recipe that doesn't disappoint. Use fresh blueberries whenever possible or substitute frozen when you must.
I ran this recipe through the Weight Watcher recipe builder and it comes in at 7 SP per serving, based on cutting the cake into 16 servings. It's an indulgence for me, but well worth it.
The recipe is here.