1. Rinse the scallops, place in a saucepan, add the boiling water and boil 5 minutes. Drain; reserve the liquid. With kitchen scissors cut the scallops in quarters.
2. Melt the butter or margarine, add the flour and stir until well blended; add the scallop liquid with the lemon juice and simmer; stir until the sauce is thick and smooth.
3. Lower the heat, add the mayonnaise, marjoram and scallops. Heat until the mixture steams; do not let it boil.