Slice frozen berries, add sugar (Splenda or another substitute could be used for fewer calories), mix together and let set to thaw. Stir when thawed to thoroughly mix. (Fresh berries can be used if in season.)
Make 8 slits in top of angel food cake, like pockets, all the way through to bottom of cake.
Spoon thawed berrie mixture into pockets/slits in cake. Keep remaining juice from berries for later use.
Refrigerate over-night or at least 2 hours minimum.
Remove cake from refrigerator and frost with the Cool Whip Lite. Drizzle berry juices over top of cake to decorate (doesn't take much).
Makes 8 servings 3.5 inches wide. (This can be cut in half for savings in calories and to serve more people).
(Note: Before frosting you can put toothpicks into cake where the slits are so that you can mark the pockets after frosting with the berry juice. This helps in knowing where to cut to allow each person to have a pocket full of berries.)