First--our family loves homemade popcorn. For years I've been using the Whirley Pop by Wabash Valley Farms and love it. Just drizzle a little oil such as olive oil or grapeseed oil. Sometimes I use a chili or vanilla bean infused olive oil--sometimes I use both. Then I add a little kosher salt in the pan, 1/2 cup of popcorn kernels and heat it up. Takes 3-4 minutes for a full pot of popcorn.
In order to get the yummy salt to fill the little kernels requires a little something to make the salt stick. Love this Trader Joe's Coconut Oil Spray--zero calories! I spray the freshly popped popcorn with the spray and toss on the salt.
Now, on to the truffle salt. World Market (aka Cost Plus) carries a reasonably priced truffle salt -- about $12.99 instead of $30. The trick with truffle salt is to add a tiny pinch because the flavor and the fragrance is very strong! So, I add the kosher salt and then a pinch of the truffle salt when I want a savory, earthy flavor--love it. Give it a try!