1 1/2 ounces sweet vermouth, such as Carpano Antica
1 ounce elderflower liqueur, such as St. Germain
1 ounce orange juice
1 ounce bitter orange liqueur, such as Campari
1/2 ounce bourbon
Juice of 1/2 lime
Orange twist, for garnish
For larger batches, everything can be mixed in larger quantities, then shaken as needed.