Remove and discard paper and plastic wrapping from cheese. Coat all surfaces with flour.
Beat egg with water in a pie plate until foamy. Dip cheese in egg, then in crumbs, coating well.
Heat butter in a small skillet or flameproof stove-to-table casserole just until it foams. Put cheese in pan; cover; cook over low heat about 5 minutes, or until golden brown on one side. Turn over and cook, covered, on other side until golden.
Remove from heat; make a cut in the cheese so it will run. Serve at once while warm with bread that has been cut into small pieces. Pass around while warm - cheese firms as it cools.
Servings: 6