Learn how to make the best traditional Dutch Bitterballen recipe. Our quick & easy authentic meatballs from the Netherlands are deep fried until crisp and served with mustard for dipping. The meatballs are crunchy on the outside and soft on the inside, a popular bar snack in Bali and Amsterdam served with fresh beer. Bitterballen are one of our favourite finger food appetizers to serve at parties and barbecues. Kids and adults love them they are so addictive!