I'd tell you if I had any idea of what bitterballen is lol
Savory Creamy Meatballs would be an appropriate translation of the word 'bitterballen'. These deep-fried meatballs are filled with a beef ragout and have a crispy outside. They are often served at cocktail parties or as a snack with a pre-dinner drink. You eat these tasty deep-fried morsels hot, on a toothpick, dipped in mustard.