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5 from 13 votes
Frrench Onion Soup Hamburger on a white dish
French Onion Burger
Prep Time
15 mins
Cook Time
55 mins
Total Time
1 hr 10 mins
If you love French onion soup, then you will love our French Onion Burger! Seasoned burgers are topped with caramelized sweet onions and melted Asiago cheese. Served on a toasted and buttered English muffin, every bite will remind you of a bowl of onion soup.
Course: Main Course, Sandwich
Cuisine: French
Keyword: french onion burger, onion soup burger
Servings: 4
Calories: 658 kcal
Author: Gwynn Galvin
Caramelized Onions:
  • 2 Tbs. butter
  • 1 lb. sweet onions , such as Vidalia, sliced, about 3 cups
  • ¼ tsp. dried thyme
  • ¼ cup beef broth or sherry
Caramelized Onions:
  1. Melt butter in large non-stick skillet. Cook onions and thyme over medium-low heat until golden, about 45 minutes.
  2. Add beef broth and, using a wooden spoon, scrape any brown bits from bottom of the skillet.
  3. Cook 1 minute or until mixture is slightly saucy. Reserve.
  1. Preheat grill for direct heat grilling.
  2. Combine ground beef, garlic powder, onion powder, kosher salt and cracked black pepper until blended.
  3. Shape into four burgers.
  4. Grill burgers to desired doneness, topping with cheese and onion during last 2 minutes of grilling time.
  5. Transfer to English muffins and sprinkle with fresh thyme leaves.
Nutrition Facts
French Onion Burger
Amount Per Serving
Calories 658 Calories from Fat 333
% Daily Value*
Fat 37g57%
Saturated Fat 16g100%
Cholesterol 121mg40%
Sodium 1127mg49%
Potassium 655mg19%
Carbohydrates 39g13%
Fiber 3g13%
Sugar 6g7%
Protein 41g82%
Vitamin A 221IU4%
Vitamin C 6mg7%
Calcium 435mg44%
Iron 4mg22%
* Percent Daily Values are based on a 2000 calorie diet.