Stilton and crab stuffed portobello topped two onion beef burgers with red onion marmalade mayo - Sutter Home Family Vineyards

Ingredients

• 6 4-inch portobello mushrooms, stems removed and gills scraped
• 1/3 cup SUTTER HOME Zinfandel
• 1/3 cup Extra virgin COLAVITA extra virgin olive oil
• 1/3 cup balsamic vinegar
• 1 tablespoon butter
• 1/2 cup thinly sliced, roughly chopped red onion
• 2 tablespoons SUTTER HOME Zinfandel
• 2 teaspoons sugar
• 1/2 cup mayonnaise
• 1 3-ounce REAL CALIFORNIA cream cheese, softened
• 1/3 cup crumbled stilton cheese
• ½ teaspoon TABASCO Chipotle Pepper Sauce
• 1 tablespoon finely chopped chives
• 1/2 pound fresh crab meat
• 2 pounds ground chuck (20% fat)
• ¼ cup finely chopped sweet yellow onion
• ¼ cup finely chopped red onion
• 1 large egg, lightly beaten
• 1 tablespoon GREY POUPON Dijon mustard
• 1 teaspoon kosher salt, divided
• 1/2 teaspoon freshly ground black pepper