3/4 oz Batavia Arrack
1/2 oz Lemon Juice
1/2 oz Pineapple Simple Syrup (*)
1/4 oz Becherovka Liqueur
1 dash Angostura Bitters
Shake with ice and strain into an Old Fashioned glass or small Highball glass filled with ice. Garnish with a long orange twist and freshly grated nutmeg.
(*) In a pinch, a 1:1 syrup of pineapple juice:sugar would do no harm as a substitute here.