Preheat oven to 450°.
Combine first 4 ingredients in a medium bowl; stir well with a wire whisk. Place cornflake crumbs in a shallow dish.
Dip bread slices into milk mixture, and dredge in cornflake crumbs. Place bread slices on a baking sheet, and drizzle with margarine. Bake at 450° for 15 minutes or until golden brown.
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