Frangelico
Frangelico is a delicious hazelnut liqueur that's perfect for sipping on its own or using in cocktails. It has a rich, nutty flavour that's truly unique and absolutely irresistible.
Frangelico is an Italian liqueur flavoured with toasted wild hazelnuts from the north of Italy, cocoa, vanilla and other ingredients.

So good. Straight up with some ice cubes is great. Couple of drops of lime juice is OK too with the wedge added to the mix. Occasionally will add splash of Schweppes brown creamy soda or a dry ginger from some maker.
Best on vanilla ice cream.
My American brother-in-law introduced us to this delicious Italian liqueur and now Christmas isn't Christmas without a bottle to share with family and friends. Belissimo! Thank you Master of Malt for restocking my drinks cabinet.
tastes like ball sack so since you were trying for nutty flavour is good
The review above already describes it perfectly. Very good to drink pure, but also mixed with drinks like Baileys.