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Ingredients for 6 servings

servings
  • The green leaves from the stems of a beautiful bunch of Swiss chard, well washed and dried
  • 3 large floury potatoes, peeled
  • 2.8 oz (80 g) of very good butter
  • 1.75 oz (50 g) of Grenoble walnuts (if possible) crushed
  • rapeseed oil
  • fine salt and lemon thyme