Remove bread crusts, lightly butter one side of each
slice and cut into 4 strips. Arrange single layer of
bread in greased 9x13" baking pan.
Evenly scatter 1 1/2 cups cheese over.
Repeat layers. In a bowl, thoroughly beat eggs.
Add milk, mustard, salt, Worcestershire and cayenne;
beat until well mixed. Pour evenly over layers in pan.
Spread evenly with remaining cheese,
cover and refrigerate overnight or up to 24 hours.
Remove from refrigerator and let stand for about
2 hours to bring to room temperature.
Bake in 350° oven until knife inserted in center
comes out dry, 45 to 50 minutes.
Let stand 15 minutes before cutting
into squares to serve. Serves 8.