Nutrition Facts for French onion toasts

French Onion Toasts

Image of French Onion Toasts
Nutriscore Rating: 66/100

Transport your taste buds straight to the heart of France with these irresistibly savory French Onion Toasts. Perfectly caramelized yellow onions, enriched with a touch of balsamic vinegar and sweetened with a hint of sugar, crown slices of crisp, oven-toasted baguette. Topped with nutty, melted Gruyère cheese and a sprinkle of fresh thyme, these elegant appetizers boast the same rich and comforting flavors as the classic French onion soup, all in a handheld format. Ready in just an hour, they’re ideal for dinner parties, holiday gatherings, or a cozy night at home. Serve them fresh from the oven for an indulgent bite that’s golden, cheesy, and bursting with depth.

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Recipe Information

⏱️
Prep Time
15 min
🔥
Cook Time
45 min
🕐
Total Time
1 hr
👥
Servings
8 servings
📊
Difficulty
Medium

🥘 Ingredients

10 items
  • 3 tablespoons unsalted butter
  • 2 tablespoons olive oil
  • 4 large yellow onions
  • 0.5 teaspoon salt
  • 1 teaspoon fresh thyme leaves
  • 1 teaspoon granulated sugar
  • 1 tablespoon balsamic vinegar
  • 1 loaf baguette
  • 1 cup Gruyère cheese
  • 0.25 teaspoon freshly ground black pepper
💡
Pro Tip: Read through all ingredients before starting to cook!

📝 Instructions

12 steps
1

Peel and thinly slice the onions into uniform half-moons.

2

Heat a large skillet over medium-low heat and melt the butter with the olive oil.

3

Add the onions to the skillet and sprinkle with salt. Stir to coat the onions thoroughly in the butter-oil mixture.

4

Cook the onions for 25-30 minutes, stirring occasionally, until deep golden and caramelized. Reduce the heat if needed to prevent burning.

5

In the final minutes of cooking, stir in the thyme leaves, sugar, and balsamic vinegar. Cook for another 2-3 minutes until well combined. Remove from heat.

6

Preheat your oven to 375°F (190°C).

7

Slice the baguette diagonally into 1/2-inch thick slices. Arrange the slices on a baking sheet.

8

Toast the baguette slices in the preheated oven for 5 minutes, or until lightly crisped.

9

Remove the baking sheet from the oven and top each slice with a spoonful of caramelized onions, spreading it evenly.

10

Sprinkle grated Gruyère cheese generously over the onions on each toast.

11

Return the baking sheet to the oven and bake for 8-10 minutes, or until the cheese is melted and bubbly.

12

Remove from oven, sprinkle with freshly ground black pepper, and serve warm. Enjoy!

Cooking Tip: Take your time with each step for the best results!
2256
cal
81.2g
protein
232.6g
carbs
115.0g
fat

Nutrition Facts

1 serving (1146.8g)
Calories
2256
% Daily Value*
Total Fat 115.0 g 147%
Saturated Fat 52.2 g 261%
Polyunsaturated Fat 4.9 g
Cholesterol 238 mg 79%
Sodium 2925 mg 127%
Total Carbohydrate 232.6 g 85%
Dietary Fiber 17.7 g 63%
Total Sugars 47.7 g
Protein 81.2 g 162%
Vitamin D 0.8 mcg 4%
Calcium 1646 mg 127%
Iron 14.5 mg 81%
Potassium 1416 mg 30%

*The % Daily Value tells you how much a nutrient in a serving of food contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.

Source of Calories

40.6%%
14.2%%
45.2%%
Fat: 1035 cal (45.2%%)
Protein: 324 cal (14.2%%)
Carbs: 930 cal (40.6%%)