30-60 mins
Make-Ahead
Over 1 hour
Quick & Easy
Under 15 mins
Under 30 mins
French Onion Soup
A richer and more complex French Onion Soup, featuring a touch of balsamic vinegar and a blend of cheeses. This version builds on the classic with subtle improvements.
Total Time
105
Yield
6
Calories
320 cal
Difficulty
Medium
Cuisine
French
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What You'll Need
Equipment:
Large pot or Dutch oven, Oven-safe bowls, Broiler •
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Instructions
In a large, heavy-bottomed pot or Dutch oven, melt Unsalted Butter and Olive Oil over medium heat.
Add Onions and cook, stirring occasionally, for 45-60 minutes, or until deeply caramelized and golden brown. Reduce heat if onions begin to burn.
Add Balsamic Vinegar during the last 5 minutes of caramelization.
Add Beef Broth, Dry Sherry, Thyme, and Bay Leaf to the pot. Bring to a simmer and cook for 20-25 minutes to allow flavors to meld.
Remove Bay Leaf. Season with Salt and Black Pepper to taste.
Preheat broiler. Place French Baguette slices on top of oven-safe bowls. Ladle soup over bread.
Top with Gruyere Cheese and Parmesan Cheese and broil for 2-3 minutes, or until cheese is melted and bubbly.
