The Waldorf Burger with Chunky OJ Mayo
1 pound ground chuck
1 pound ground sirloin
1/2 cup grated onion
3 cloves garlic, minced
1 teaspoon seasoned salt
3 tablespoons vegetable oil for brushing the grill
6 slices Swiss cheese
6 hard rolls
1 cup mayonnaise
2 tablespoons frozen orange juice concentrate, thawed
1/2 cup finely chopped celery
1/2 cup chopped walnuts
6 slices red delicious apple, skin-on, seeds cut out
3 cups pre-washed bagged baby arugula, torn
Prepare a medium-hot fire in a charcoal grill with a cover, or preheat a gas grill to medium-high.
To make the patties, combine the chuck, ground sirloin, onion, garlic, and seasoned salt in a large bowl, handling as little as possible. Shape into 6 patties to fit the bun size. When the grill is ready, brush the grill rack with vegetable oil. Place the patties on the rack; cover, and cook, turning once, until done to preference, 5 to 7 minutes on each side for medium. Place the cheese slices on the patties during the last 3 minutes of grilling. Place the buns, cut side down, on the outer edges of the rack to toast lightly during the last 2 minutes of grilling.
Meanwhile, in a small bowl, combine mayonnaise, orange juice concentrate, celery and walnuts; set aside.
To assemble the burgers, place a cheese-topped patty on bottoms of rolls. Top with an apple slice and arugula. Spread chunky mayonnaise generously on roll tops. Add the tops to burgers and serve immediately.
Makes 6 burgers