Well, now I know for sure. This works like a charm. Here are the directions that I followed. It's really a very easy process.
1. Chop basil
2. Put basil in ice cube tray, spreading it evenly between the cubes
3. Fill ice cube tray with water
4. Put in freezer
5. Once frozen, the basil cubes can be removed from the tray and stored in a freezer bag.
We used a cube in some tomato sauce for a spaghetti dinner. It was amazing! Thank you Pinterest :)