Make this recipe a recipe that people in that category can eat. categories: ['vegetarian'], recipe: melt butter; blend in flour. add vinegar, beef broth, prepared horseradish mustard, and . brown sugar. cook slowly, stirring constantly, till thick. gradually add a little hot mixture to 1 slightly beaten egg yolk. return to hot mixture. bring sauce to boiling, stirring constantly. serve hot with corned beef or ham. makes 1 cup.

Target recipe: in small bowl combine first 6 ingredients. beat cream with mixer or whisk until stiff peaks form when lifting up mixer or whisk from bowl. pour horseradish mixture over cream. with rubber spatula fold together lightly but thoroughly. taste and adjust salt/pepper to tastes.