Patat Frites (or Vlaamse Frites) are long, thick fries usually served in a paper cone topped with mayonnaise. You can always get knooflok (garlic) sauce, ketchup, fritessaus (lighter version of mayo) or peanut sauce for an extra fee.
Poffertjes (Dutch Mini Pancakes) recipe and information in English from The Dutch Table. The Dutch Table is the most extensive online resource for traditional Dutch food recipes, and is growing weekly.
Erwtensoep (Dutch Pea Soup) This soup is not a starter but a substantial meal, a favorite winter soup. When cold the soup should be thick enough to be slide. Traditionally served with pumpernickel bread.