Toluca Burgers - Sutter Home Family Vineyards

Ingredients

• 3 tablespoons bottled red taco sauce
• 3 tablespoons mayonnaise
• 2 teaspoons pickled jalapenos, minced
• 2 tablespoons vegetable oil, plus additional for brushing grill rack
• 2 large white onions
• 2 tablespoons sugar
• 2 1/2 teaspoons salt, divided
• 1 1/2 pounds ground chuck
• 1/2 pound chorizo, removed from casing, if necessary
• 1 clove garlic, minced
• 1 teaspoon cumin
• 3/4 teaspoon freshly ground black pepper
• 6 ounces queso fresco, crumbled
• 6 sesame seed hamburger buns
• 6 green leaf lettuce leaves
• 1 avocado, sliced