1. Mix 1 pkg. Black Cherry Jell-o by pkg. directions.
2. Blend in one can of Blueberry Pie filling.
3. Pour in small casserole-size dish and chill until set.
4. Blend cream cheese with sugar and vanilla. Blend in container of Cool Whip by folding into cream cheese mixture. Spread on top of blueberry mix.
5. Optional- arrange pecans on top. Store in fridge.