1.5oz Bourbon
1.5oz Pimm's #1
.5 oz Cynar
5 drops Bittercube Cherry Bark Vanilla bitters
Large slice of grapefruit peel
Stir bourbon, Pimm's, Cynar and three drops of bitters in a mixing glass with ice. Strain into rocks glass. Add large ice chunk. Squeeze grapefruit peel over a lit match to express the oils in the drink. Garnish with flamed grapefruit peel and two more drops of bitters.