Best uses for cream of tartar

Scones and snickerdoodle cookies!

You can combine it with baking soda to make baking powder. Just make sure that your cream of tarter is fresh. If not, it will leave a nasty bitter taste in your baked goods. (It sounds like your tiny container doesn't qualify as "fresh," but it should have a "use by" date on it where you can check.) The ratio is one teaspoon of baking soda to 2 teaspoons of cream of tarter plus one teaspoon of corn starch. ;o)

You can mix cream of tartar with vinegar into a paste, to use as a scrubbing agent for hard water stains and soap scum. This paste can be used as a metal cleaner, like cleaning and buffing copper pots. And it can be used as a stain remover for fabric.

Meringues! Just a pinch when you're whipping works magic.