| Make the pastry and chill for at least 1 hour before using. See that the lamb is fairly free of
fat, and securely tied: put in a roasting pan and rub with about a third of the butter. Put
into a very hot oven, 450°F for 20-30 minutes. Take out and allow to cool slightly. Mix the
remaining butter with the herbs, salt and pepper. Roll out the pastry to a piece large enough
to wrap around the joint. Carefully remove the string from the lamb, trying to retain the
shape. Put it in the center of the pastry, dampen the edges, and draw the pastry up over the
top: secure well by squeezing the pastry ends and edges together. Turn over so that the fold is
underneath, and put on a baking sheet. Prick all over the top lightly with a fork, then brush
with either the milk or beaten egg. Put into 400°F oven and cook for about ½ hour,
or until the pastry is nicely browned. Turn the sheet once during baking to make sure the
browning is even. Serve, cut into fairly thick slices.
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