Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
  10      pounds        beef bones *
  10      pounds        veal bones *
  5       pounds        chicken backs -- or cleaned feet
***DARK MIREPOIX***
  1/2     head          celery -- large chopped
  1/2     bunch         leeks chopped
  2       large         onions chopped
  2       pounds        carrots chopped
******
  6       ounces        tomato puree
  1       head          garlic crushed
  1                     ham hock
  1/2     bunch         parsley stems
  5                     bay leaves
  1       tablespoon    peppercorns crushed
  1/2     tablespoon    thyme leaf
  1/2     liter         red wine
  5       gallons       water

Preparation:

Place the bones on a bed of dark mirepoix in a roast pan. Pour the tomato puree over them. Add remaining ingredients except wine and water. Roast in a 350 F oven until well browned. Do not let anything burn. Baste with red wine to prevent mirepoix from burning at the rear of the pan, where the oven is hottest. Transfer the contents of the pan to a stock pot. Deglaze the pan with water, scraping any dried essences with hot water to dissolve them. Add the deglazing to the stock pot. Add cold water to the stock pot to cover the bones completely. Bring to the boil, then simmer for up to 18 hours, with skimming to remove any scum that rises. Scald clean containers, and strain stock into each, seeing some fat into each to act as a protective cap. Cover with Saran wrap and cool. This will keep at least a week, but should be part of the regular weekly mise en place. Excess should be frozen or reduced for glace d'viand, a 10-1 reduction. The fat from the top is nice to use for making brown roux, as it has just the right color and flavor. If this is to be used for making Sauce Espagnol, you can sprinkle 1 lb of flour over the mirepoix and bones. Allow the flour to brown, but not burn. Turn it under and sprinkle with red wine or water, and lower the oven temperature. When I add flour to this, I call it Estoufade instead of calling it Fonds Brun (Brown Stock). Nothing should be allowed to carbonize or turn black, as the flavor of carbonized flour or veg is bitter. * Note: Have only the freshest bones sawn in 2-4 inch lengths, and include some beef neck bones, and if obtainable, a split calves foot.