It sounds like you are trying to keep your recipes healthy, and that is great.
Keeping that in mind, I highly recommend that you replace the Splenda with Stevia Extract, a 100% natural herbal extract that sweetens. It can be found in any health food store or organic market.
While Splenda is widely used because it doesn't increase insulin levels, it is made with sucralose, which is a chemically synthesized POISON that is HIGHLY TOXIC! Just check out any natural health website, or do a Google search for "sucralose".. It was released with NO long term research, and questionable results on what little research they did do.
And don't believe the manufacturer's hype... They also said agent orange wouldn't hurt our troops, and that aspartame was safe to eat.

Sadly, just because the FDA approves something, doesn't mean it is good for us.

They have a long history of saying "ooops", too late.