Red Wine Demi Burger - Sutter Home Family Vineyards

Ingredients

• 1/2 cup colavita olive oil
• 3 1/2 inch slices of a large onion
• 1 portabella mushroom cap, gills removed
• 1 & 1/2 tablespoons salt
• 1 tablespoon pepper
• 1 & 1/2 lbs ground beef
• 4 cloves garlic minced
• 3 tablespoons grey poupon mustard
• 1/2 cup & 2 tablespoons sutterhome merlot
• 1 cup pre cooked bacon, chopped
• 1 cup shredded gryere cheese
• 1/2 teaspoon demi glace sauce concentrate
• 1 cup real mayo
• 6 slices of tomatoes
• 6 pieces green leaf lettuce
• 6 buns