Advocaat is a Dutch egg yolk liqueur that is sweet, creamy and slightly thick so that it tastes like warm pastry cream. The word advocaat can mean avocado in Dutch, so that some people think that the original version was made in Suriname and thickened with the local avocados. Not having that tropical fruit in the cold European climate, the liqueur changed to being thickened with egg yolks.
Most Advocaat is a creamy yellow in color, fairly sweet, and low in alcohol, between 30 and 40 proof. In Mexico, a similar drink is rompope. Bols and DeKuyper are two producers of note.