Recently I made some videos about Kwekkeboom Croquettes, so that's why today I'm reviewing the Black Angus Bitterballs from Kwekkeboom. Bitterballs are basically the same as croquettes, only in a different shape. The best sauce with bitterballs is mustard. Because I'm a big fan of Polish mustard I'm trying three different types of Polish mustard with these bitterballs.