
Licor 43 is a Spanish liqueur made in Cartagena to a secret family recipe of 43 ingredients, among them Mediterranean citrus and botanicals.
Tuaca
Comes closest in flavor. It is stronger and less sweet, so start with half a barspoon of syrup per 15 ml and taste.
Galliano Vanilla
Has a little over half the sugar. Use the same amount, plus half a barspoon of syrup per 15 ml.
Homemade blend
Stir two parts vanilla vodka with one part 2:1 syrup and steep a strip of orange zest in it. It lands a little weaker and less sweet than Licor 43.
On its own it is stronger and drier.
Swapped in, it adds strength and puts anise in front instead of citrus.
The maker says it doesn't expire. Its citrus and fresh botanical notes do fade after opening, so a bottle open for a long time tastes flatter.
Suitably Frank Shot
Cherry liqueur, Licor 43 Original liqueur, Vodka