Don't skip topping burgers with fig preserves before adding the cheese. It adds a wonderful sweet touch that's great with the tartness of the Red Onion Jam.
RED ONION JAM
4 cups thinly sliced red onions (about 2 medium)
1 teaspoon olive oil
1/4 cup sugar
1/4 cup red wine vinegar
3/4 teaspoon chopped fresh thyme
Vegetable cooking spray
1 1/2 pounds ground round
2 tablespoons chopped fresh oregano
1 teaspoon salt
1/4 teaspoon garlic powder
3 tablespoons fig preserves
4 (1/2-oz.) Muenster cheese slices
4 hamburger buns, toasted
How to Make It
Prepare Onion Jam: Sauté onions in hot oil in a large nonstick skillet over medium-high heat 10 minutes. Reduce heat to low; stir in sugar, vinegar, and thyme. Cover and cook 10 minutes or until onion is very tender. Keep warm.
Prepare Burgers: Coat cold cooking grate of grill with vegetable cooking spray, and place on grill. Preheat grill to 350° to 400° (medium-high) heat. Gently stir together ground round and next 3 ingredients. Shape mixture into 4 (1/2-inch-thick) patties.
Grill patties, covered with grill lid, 5 minutes on each side. Top with preserves and cheese; grill 2 minutes or until beef is no longer pink in center and cheese is melted. Serve burgers on buns with desired amount of Red Onion Jam.