Note: This formulation is caffeine-free. I haven't tried adding caffeine yet. It looks like a 20oz cola contains about 58mg of caffeine. That looks to be equivalent to about 1/4 of an over-the counter caffeine pill. I'm not sure how well it dissolves in water, though.
Step 1: Materials
- Vanilla extract
- Cinnamon extract
- Orange extract
- Lemon juice
- green and red food coloring (optional)
Other ingredients that might come in handy are:
- Glycerin - The local pharmacy should have this. A couple drops should help keep the ingredients mixed. The bottle says "for external use only". Go figure.
- Cream of tartar - Found it in the spice section of the grocery store. Mildly acidic. Can be used instead of lemon juice if you'd prefer a less citric taste.
- Phosphoric acid. This was the one ingredient I couldn't get in a grocery store or pharmacy. I had to order it online from The Science Company. $20 for 16oz, which will do about 800 bottles of cola. Note: Very corrosive.