Erwtensoep, also known as snert, is a thick, hearty Dutch split pea soup that's considered one of the Netherlands' most cherished comfort foods. This rich, stick-to-your-ribs soup is so thick that folklore says a wooden spoon should stand upright in it! It's traditionally served during the cold winter months, particularly after winter sports like ice skating on frozen canals.

The origins of erwtensoep can be traced back centuries, when it served as a nutritious, filling meal for laborers and farmers during harsh Dutch winters. The soup's incredible thickness and high caloric content made it perfect for sustaining energy during cold working days. Today, it remains a beloved national dish that represents Dutch culinary heritage.

Making authentic erwtensoep is a labor of love that requires patience. Split peas are simmered for hours with pork belly or bacon, creating a rich base. The soup is then loaded with winter vegetables like carrots, celery, leeks, and potatoes. The crowning touch is the addition of rookworst (Dutch smoked sausage), which adds a deep, smoky flavor that's essential to the dish. Some cooks even prepare it a day in advance, as the flavors develop and the soup becomes even thicker overnight.

While the traditional recipe remains the most popular, modern variations might include different meat combinations or additional vegetables. Some cooks add celeriac for extra flavor, while others might include turnips or parsnips. Vegetarian versions exist too, though purists might argue that the meat is essential for authentic flavor.

In the Netherlands, erwtensoep is often served as a complete meal with rye bread and sliced bacon (katenspek) on the side. Street vendors sell it at winter markets and ice skating rinks, where it's served in paper cups with bread and smoked sausage. It's also a popular choice for lunch or dinner during the cold season, especially after outdoor activities.

From a nutritional standpoint, erwtensoep is incredibly nutritious despite its hearty nature. Split peas are high in protein and fiber, while the abundance of vegetables provides essential vitamins and minerals. However, with the traditional recipe containing various pork products, it can be high in saturated fat and sodium. A single serving typically contains around 300-400 calories. Those with dietary restrictions should note that while the soup is naturally gluten-free, many of the accompaniments like bread and certain sausages contain gluten. The soup freezes well, making it a convenient meal to prepare in large batches for the winter season.