The Louisbourg Institute of / L' Institut de Louisbourg de Cape Breton University ~ © 1995-present ~ Louisbourg.info@pc.gc.ca 
  A Research Site for the Fortress of Louisbourg National Historic Site of Canada operated by the Louisbourg Institute ~
  Un site de recherche du lieu historique national du Canada de la Forteresse-de-Louisbourg géré par l'Institut de Louisbourg

Food and Cooking In Louisbourg Site

Coulis de Racines
(Root Vegetable Broth)

Take some white onions, carrots, parsnips, a handful of parsley, a little basil, cloves, soaked croûtes*; crush together and moisten with some clear purée, or fish broth; let it all simmer and strain through a bolting cloth.

Le Ménage des Champs et de la Ville, Paris, 1738, page 549.

*Croûtes: Soup crusts, made of dried or toasted bread. These can be made in various sizes and shapes and served in or with soups and stews. Interpretation:
  

Season and simmer slowly in 1/4 cup butter in a covered pan.
Place in large pot with 6-7 cups good broth.
Add:

Bring to a boil and simmer for approximately 1 1/4 hours.
Add ½ cup fresh chervil, chopped (strain through a sieve or blend together; serve either way). If desired, add ½ cup cream just before serving.

Croûts or croutons may be added to potage before serving or used to thicken the purée while simmering.