(Note: These jars work great, but any type small 4-oz jar will do.) For each 4-oz jar, you will use ½ cup of Epsom Salts, and 10 drops of essential oil. And for extra lavender goodness, add a tablespoon dried lavender to your bath salts.
Measure the salts into a mixing bowl, then add the essential oil and stir. Place the funnel in the jar and spoon the salts into the jar.