Groninger mosterdsoepMustard and leek soup
Groningen in the far north of the Netherlands has been making mustard since the Middle Ages, and its creamy mustard soup is served in every café in the city: a velvety roux soup with leek, stock and cream, sharpened with a generous amount of coarse Groninger mustard. Most cafés top it with crisp bacon bits; this vegetarian version uses toasted croutons and chives. A common mistake is boiling the soup after the mustard goes in, which makes it bitter and grainy. Chef's tip: whisk the mustard in off the heat at the end, so it keeps its tang.
























