Beat the egg with a pinch of salt. Lightly flour the slices of liver, shake off the excess, and dip them first into the beaten egg and then into the breadcrumbs.
In a large heavy skillet, over a medium high heat, melt the butter and quickly sear the liver until brown on both sides. Turn the liver only once to avoid overcooking. Remove the liver to a platter and cover with loosely tented foil to keep warm.
To the same skillet, over a low heat, add the shallots and cook 3 to 4 minutes. Add the lime juice and sugar, stirring until the sugar is dissolved. Add the lime segments. Pour this mixture over the liver and garnish with slices of hard cooked egg.
Serve with braised green cabbage.
c.1997, M.S. Milliken & S. Feniger, all rights reserved