Spread butter thinly on slices of white or whole wheat bread. Cover with a thin layer of mustard. Cut each slice into 4 pieces. Top with rounds of hard-boiled egg. Sprinkle lightly with salt and pepper. Wrap each sandwich with rolled fillets of anchovy, placing a caper in the center of each roll. These tartlets can be prepared up to an hour before serving.
Spread butter thinly on slices of white or whole wheat bread. Cover with a thin layer of mustard. Cut each slice into 4 pieces. Top with rounds of hard-boiled egg. Sprinkle lightly with salt and pepper. Wrap each sandwich with rolled fillets of anchovy, placing a caper in the center of each roll. These tartlets can be prepared up to an hour before serving.
