Benihana Magic Mustard Sauce 1 tbsp Sesame seeds - crushed & toasted 3 tbsp Dry mustard 2 tbsp Hot water 3/4 cup Soy sauce 1/4 Garlic clove - crushed 3 tbsp Heavy cream - whipped Preheat oven to 350°F. Place sesame seeds in flat pan in oven to toast. (about 10 - 15 minutes) Mix mustard and water in a small mixing bowl until it forms a paste. Place in blender with sesame seeds, soy sauce and garlic. Blend at high speed for about 1 minute. Remove and stir in whipped cream.