Peel and finely chop the onion. Clean and quarter the mushrooms. Steam both in hot fat. Let cool off
Dab the meat. Wash liver, pat dry. Peel, quarter and core the apple. Turn everything through a mincer with a fine disc. Knead with mushrooms, starch, calvados, pistachios, egg, salt, pepper and herbs
Line a terrine mould (approx. 25 cm long; 1 1/2 l capacity) with 2/3 bacon. Pour in the mixture. Cover with rest of bacon and bay leaf
Cover the terrine and cook in a water bath in a hot oven (electric cooker: 175 °C/circulating air: 150 °C/gas: level: 2) for approx. 1 1/2 hours. Remove. Cover with aluminium foil and weigh down with a board and weights. Leave to rest overnight. Drain off leaked juice
served with: cranberry sauce and baguette