Roasted Red Pepper Fontina Burger with Portobello Aioli - Sutter Home Family Vineyards

Ingredients

• 1 large fresh Portobello mushroom cap
• 1/3 cup Sutter Home Cabernet Sauvignon
• 1 cup mayonnaise
• ½ tsp salt
• ½ tsp black pepper
• 2 crushed garlic cloves
• 2 large fresh red bell peppers
• Oil for brushing peppers and grill
• 2 lbs. fresh ground chuck
• ¼ cup minced red onion
• 1 ½ tsp salt
• ½ tsp Greek seasoning
• 1 T fresh chopped rosemary
• ¾ lb. fontina cheese cut into slices
• 6 Kaiser rolls split