FOR THE GRAVY - There is a link to Jamie Oliver's recipe in the recipe post. I omitted the Marmite and reserved the vegetables after straining to add to my nut roast.
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FOR THE NUT ROAST:
1Tbl Vegan Margarine
1Stalk of Celeryfinely chopped
1/2Leekfinely chopped
1/2Onionfinely chopped
1/2CRoasted Chestnutsfinely chopped
1/4CWalnutsfinely chopped
8oz. of Wild Mushroomsor Baby Bella Mushrooms, coarsely chopped