Mixing splenda with cream cheese?
I assume you want to mix them to stuff the crepes. It will work.
Here are some other ideas. Mix Crystal Lite with cream cheese for another yummy. I especially like the lemon-ade flavor.
Finally, add some dry powderd milk to very cold milk, add Splenda and SF vanilla syrup or extract and beat well for an excellent whipped cream substitute. It will even thicken up for you. You might also consider adding some protein powder to this one.
Shirley