Peppermint Bath Salts

I hesitate to put this here on the food blog because it isn't food...I guess if I call my blog a recipe blog it fits because there is a recipe. In any case, I came across this recipe in a weekly ad flyer for a local supermarket. It sounded easy and I thought it would fit nicely for a few people on my Christmas gift list.
The Ingredients

2 Tbsp lemon juice
1 Tbsp mint extract
3 drops food coloring
2 Tbsp cornstarch
1/4 cup baking soda
1 Tbsp salt

In a large bowl, combine lemon juice, extract and food coloring.

In another bowl combine cornstarch, salt and baking soda.

Mix contents of both bowls until well blended.

Pour mixture into ice cube trays and let harden overnight.

To use, place one cube in warm bath water and relax your worries away!!

**UPDATE**
These did not quite set up for me overnight. They were mostly set but had a layer of liquidy stuff on top. I poured off the liquid and set the tray in a sunny window for a few hours. Then they were solid enough to pop out of the tray for the most part. The ones that crumbled or broke I put into a container to keep for myself. I figure I can put an old tablespoon measure in there and just dole out a scoop or two when I want to soak. In h9indsight, this would be a good way to give this out as well. Just let it dry out in the mixing bowl and put a scoop or tow into a pretty little jar of some sort. Lesson learned for next time!