Diamonds on My Windshield

Combine the aquavit, dry vermouth, and elderflower liqueur in a mixing glass filled with ice.

Add a couple of dashes of orange bitters.

Stir the mixture until well-chilled.

Strain the cocktail into a chilled cocktail coupe.

Twist a lemon zest over the drink to release its oils, then discard the zest.

Garnish with a fresh sprig of thyme.