Tag: boerenkool

Three Winter Soups

11 December 2025

A few weeks ago, we enjoyed a delicious vegan dinner at Lokaal, a small restaurant in the centre of Gent, Belgium. Friendly service, relaxed atmosphere and nice music. One of the specialties of Lokaal is fermentation, for instance homemade Tempeh from Bulgur. Lots of umami and length. We loved it!
Our dinner at Lokaal started with a nice winter soup made with kale and kohlrabi. We’re not the biggest fans of kale, but in this case it worked very well. The kohlrabi gave a nice, uplifting touch to the soup.

It made us think of other winter soups, like parsnip and Jerusalem artichoke soup, and parsley root soup. Ah, those forgotten vegetables! They bring us new flavours and combinations.

We used vegetable stock for all three soups. It is made with Carrot, Onion, Leek, Celery and Black Pepper (and optional a bouquet garni). Easy to make and lots of flavour. It freezes well, which makes it an even more important asset.

What You Need (Kale and Kohlrabi soup)
  • 500 ml Vegetable Stock
  • 200 grams of Kohlrabi
  • 50 grams of Kale
  • French Mustard
What You Do
  1. Clean the vegetables
  2. Devein the kale
  3. Peel the kohlrabi
  4. Coarsely chop the vegetables
  5. Warm the stock
  6. Add the kohlrabi
  7. Leave to simmer for 10 minutes
  8. Add the kale
  9. Leave to simmer for 10 minutes
  10. Use a blender to make a relatively smooth soup
  11. Add mustard to taste
  12. Serve
  13. PS The soup doesn’t keep well, so not one for the refrigerator
What You Need (Parsnip and Jerusalem Artichoke soup)
  • 500 ml Vegetable Stock
  • 200 grams Parsnip
  • 200 grams Jerusalem Artichokes
  • White Pepper (optional)
What You Do
  1. Clean, peel and coarsely chop the vegetables
  2. Warm the stock
  3. Add the vegetables
  4. Leave to simmer for 15 minutes or until the vegetables are done
  5. Use a blender to make a smooth and creamy soup
  6. Depending on the Jerusalem Artichokes the soup can become fairly thick. Add some stock if so required
  7. Taste (optional: add some white pepper)
  8. Serve
  9. PS You can also enjoy the soup the next day, it keeps well in the refrigerator
What You Need (Parsley Root soup)
  • 500 ml of Vegetable Stock
  • 200 grams Parsley Root
  • 1 small Shallot
  • ½ Leek (white only)
  • 1 small clove Garlic
  • Butter
  • Parsley
What You Do
  1. Warm butter in a pan
  2. Peel and coarsely chop parsley root
  3. Coarsely chop leek and onion
  4. Glaze onion and leek in butter
  5. Add parsley root
  6. Add garlic
  7. Leave on low heat for 5 minutes
  8. Add stock
  9. Simmer for 20-30 minutes or until the parsley root is soft
  10. Blender
  11. Pass through a sieve
  12. Simmer for 10 minutes
  13. Cool
  14. Serve the next day
  15. Decorate with chopped parsley leaves
Kale and Kohlrabi Soup made with vegetable stock. An intriguing combination. The kohlrabi gives this winter soup an uplifting flavour. ©cadwu
Kale and Kohlrabi Soup ©cadwu

Curly Kale with Confit de Canard

25 January 2024

Recently we wrote about kale-sprouts, the purple combination of Kale and Brussels sprouts. When working on the post we noticed that we actually never wrote about Curly Kale. This typical winter vegetable (also known as Boerenkool, Grünkohl or Chou Frisé) is not known for its culinary capability, although Cavolo Nero (which is a variety of Kale) has become fairly popular over the last years. Dishes like Ribollita, Minestrone or Cavolo Nero prepared with orecchiette and anchovies sound tempting.
Curly Kale is sometimes described as a super food because it contains lots of vitamines and it’s supposed to be good for your eye-sight. Reality is that it’s not simple to turn Curly Kale into something tasty. In 2015 Felicity Cloake (who writes for the Guardian) explains how to make kale crisps. She compares recipes from various authors and decides to make the perfect crisps from…. Cavolo Nero!
Curly Kale itself is typical comfort food. Served with potatoes, bacon and sausages; to be enjoyed with a glass of beer or a glass of Pinot Blanc.
Best is to eat Curly Kale after a wintery period. As soon as the temperature drops below zero, the plant will start breaking down the starch in the leaves into simple sugars. These sugars prevent the plant from freezing and the taste becomes sweeter and less bitter. A process that happens in carrots, turnips, beetroot, kale and Brussels sprouts but not in potatoes.

The traditional Dutch way of cooking Curly Kale is to add the sliced leaves with the potatoes to a pan of salted water, cook until done, drain, then mash with butter, warm milk, nutmeg, and black pepper. It is served with slices of smoked sausage. Hearty, filling and serieously heavy on your stomach.
We prefer a more modern version, highlighting the flavour and the texture of the Curly Kale.

What You Need
  • 400 grams of Fresh Curly Kale leaves
  • 1 small Potato
  • 1 Shallot
  • 1 Garlic Clove
  • Butter
  • Nutmeg
  • Black pepper
  • Confit de Canard
What You Do

Set your oven to 180 °C or 355 °F. Reheat and fry the confit de canard. Chop the shallot, finely chop the garlic, peel the potato and dice, strip the curly kale from its stems and slice the leaves. Add a generous amount of butter to the pan, gently fry the shallot for a few minutes, then add the garlic. After one minute or so add the sliced kale and allow to simmer. Add the diced potato, combine and leave to simmer for a few minutes. Add some water to the pan. Cook for 15-20 minutes until the potato is ready. Best is if the water has evaporated by this time. In the meantime, the duck should be ready. Poor the duck fat in the pan, mash very briefly (you want to keep the structure of the potatoes), add nutmeg and black pepper. The mash should be about the kale, with the onions, garlic and potato supporting it. Serve immediately on a warm plate.

Curly Kale ©rasbak
Curly Kale with Confit de Canard ©cadwu