I haven't tried using stevia et. I hear a lot of good things about it and I want to try it but I haven't found out how you really use it or cook/bake with it. If you try it, let me know how it goes :D
I have one from smuckers.
Recipe Here. Its for sugar free cheesecake also. Most of the flavor comes from lemon juice but there is sweetened condensed milk in it so even that she knows to eat sparingly.
What I really want to find is sugar free chocolate something for her. Most sugar free chocolate is all splenda or something else and just isn't right :/