1/2 oz Yellow Chartreuse
1/2 oz Green Tea Syrup (*)
1/2 oz Lemon Juice
1 dash Angostura Bitters
Shake with ice and strain into a cocktail glass containing 1 oz soda water. Garnish with 6-8 pre-swelled Thai basil seeds (also known as tukmaria and falooda). A lemon twist would work in a pinch.
(*) 1 part strong steep tea to 1 part sugar.