Welcome to the weekend! The Jewel (also known as a Bijou - as made for Jimmy Fallon by Rachel Maddow) is a serious way to start the weekend. Like any drink with chartreuse as a key component, it has very strong herbal notes. The sweet vermouth softens the spiciness, while the gin provides a smooth background for the flavors. Crack out that bottle of Chartreuse you have hiding in the back of the liquor cabinet (you do have a bottle, don't you?) and give it a try.
In an iced cocktail shaker, combine:
1 ounce gin
1 ounce green Chartreuse
1 ounce sweet vermouth
dash orange bitters
Stir until very cold. Strain into a cocktail glass. Garnish with a lemon twist.