Yes, a good brownie and a cup of amazing coffee is a fine way to relax!

As for the lavender, you might be surprised at the strength of its flavor: http://whatscookingamerica.net/Lavender.htm .

I know coffee is a truffle staple flavor; the White Russian suggestion was a spring board for thought. With your recent interest in bitters, maybe a line of drink inspired truffles, including some bitters???

How about a Scooby Snack truffle: http://www.drinksmixer.com/drink528.html
Yum!