Spread butter or margarine on slices of black bread, preferably pumpernickel type; cover with a thin layer of mustard; cut the slices in half. Cover each half with cold roast beef sliced into fine strips, folded. Garnish with fried onion rings. Sprinkle lightly with pepper. These sandwiches can be made up to an hour before serving.
Spread butter or margarine on slices of black bread, preferably pumpernickel type; cover with a thin layer of mustard; cut the slices in half. Cover each half with cold roast beef sliced into fine strips, folded. Garnish with fried onion rings. Sprinkle lightly with pepper. These sandwiches can be made up to an hour before serving.
