Teriyaki Portobello Burgers With Napa Cabbage Slaw Recipe By : Gourmet/April 1996 Serving Size : 4 Preparation Time TERIYAKI MARINADE 1/3 Cup soy sauce 2 Tablespoons Sherry 3 Tablespoons rice vinegar 1 1/2 Tablespoons fresh organic ginger root 2 Tablespoons maple syrup 4 Portobello mushroom caps NAPA CABBAGE SLAW 2 Tablespoons soy mayo 2 Teaspoons rice vinegar 1 Teaspoon sesame oil 1/2 Teaspoon honey 2 Cups finely shredded Napa cabbage 1/2 Cup finely shredded carrot 2 scallions -- chopped fine 4 sesame seed hamburger buns -- lightly toasted Make teriyaki marinade: In a small saucepan, simmer marinade ingredients, stirring until sugar is dissolved. Continue simmering marinade until reduced to about 1/2 cup and cool to room temperature. Put mushroom caps and marinade in large sealable plastic bag, arranging caps in one layer, and seal bag, pressing out excess air. Marinate mushrooms at room temperature, turning bag over several times, 1 hour. Make slaw: In a bowl, whisk together mayonnaise, vinegar, oil and honey and add cabbage, carrot and scallions. Toss vegetables well to coat and season with salt and pepper. Preheat broiler. Drain mushrooms and arrange, stemmed sides up, on a lightly oiled rack of a broiler pan. Broil mushrooms 2 inches from heat and turn over. Brush mushrooms lightly with oil and broil 3 minutes, or until tender. Transfer mushrooms with a slotted spatula to hamburger bun bottoms. Top mushrooms with slaw and bun tops.