I purchased one bag of frozen, mixed berries and a sugar free chocolate cake.
I put some of the mixed berries in a tiny bowl and saved a few perfect blackberries for garnish. The rest of the berries were simply pureed in my blender with a few teaspoons of water to make a "no sugar added" sauce. This was a way to add sweetness and add another layer of flavor without frosting the cake.
YUMMY! All the goodness with no added sugar. Enjoy!