2 Tbs. butter
1 lb. sweet onions , such as Vidalia, sliced, about 3 cups
¼ tsp. dried thyme
¼ cup beef broth or sherry
Burgers:
1 1/4 lbs. ground beef
1 tsp. garlic powder
1 tsp. onion powder
½ tsp. kosher salt
½ tsp. cracked black pepper
4 ounces Asiago cheese , shredded, or Gruyere cheese
4 English muffins , toasted and buttered, or hamburger rolls
Fresh thyme leaves
Caramelized Onions: Melt butter in large non-stick skillet. Cook onions and thyme over medium-low heat until golden, about 45 minutes. Add beef broth and, using a wooden spoon, scrape any brown bits from bottom of the skillet. Cook 1 minute or until mixture is slightly saucy. Reserve. Burgers: Preheat grill for direct heat grilling. Combine ground beef, garlic powder, onion powder, kosher salt and cracked black pepper until blended. Shape into four burgers. Grill burgers to desired doneness, topping with cheese and onion during last 2 minutes of grilling time. Transfer to English muffins and sprinkle with fresh thyme leaves.