Set the loaf pan in a baking dish. Pour boiling water into the dish until it reaches halfway up the side of the loaf pan. Bake until a thermometer inserted in the centre reads
74°C (165°F), about 1 1/2 hours. Allow the pâté to cool in the water. Remove from the water and refrigerate for at least 3 hours, preferably overnight. Serve chilled or at room temperature with slices of French-style country bread.