Steak Burgers with Creamy Blue Horseradish Sauce - Sutter Home Family Vineyards

Ingredients

• ½ cup mayonnaise
• 1 Tablespoon sour cream
• 2 Tablespoons horseradish
• 1.5 Tablespoons crumbly blue cheese
• 2 Tablespoons chopped fresh parsley, chives and basil (any combination)
• 1/4 teaspoon black pepper
• 1.5 pounds ground chuck
• 1.5 pounds ground sirloin
• 2 teaspoons kosher salt
• 1 teaspoons Black Pepper
• 1 teaspoon Cayenne pepper
• 3 Tablespoons steak sauce
• 1 large egg
• Vegetable oil to grease grill rack
• 6 crusty Kaiser rolls, split
• 18-24 arugula lettuce leaves
• 1-12oz jar roasted red pepper in oil, drained & chopped