Frenchy Oniony Sandwich

Indulge in the rich, savory flavors of the Frenchy Oniony Sandwich, a gourmet twist on a classic comfort food. This irresistible sandwich brings together perfectly caramelized onions, infused with garlic, balsamic vinegar, and a touch of sweetness, layered atop a crispy baguette. Topped with creamy Gruyère cheese and a sprinkle of fresh thyme, then broiled to bubbly perfection, each bite is a symphony of earthy and buttery goodness. Spread with tangy mayo for an extra layer of indulgence, this recipe is the perfect choice for an elevated lunch or dinner. With just 30 minutes of cook time, it’s a quick, satisfying way to experience French-inspired cuisine without leaving your kitchen. Serve it warm alongside a bowl of soup or a crisp salad for a complete meal that’s sure to impress.

Nutriscore Rating: 58/100

Prep Time:15 mins

Cook Time:30 mins

Total Time:45 mins

Servings: 4

Ingredients

• 3 tablespoons unsalted butter
• 3 medium, thinly sliced yellow onions
• 2 cloves, minced garlic
• 1 teaspoon sugar
• 1 tablespoon balsamic vinegar
• 0.5 teaspoon salt
• 0.25 teaspoon black pepper
• 1 large, sliced into 4 pieces and halved lengthwise baguette
• 8 slices Gruyère cheese
• 4 tablespoons mayonnaise
• 2 teaspoons, chopped fresh thyme

Directions

Step 1

Melt the butter in a large skillet over medium heat.

Step 2

Add the sliced onions and cook, stirring occasionally, for about 15 minutes until they soften and turn golden brown.

Step 3

Stir in the minced garlic, sugar, and balsamic vinegar. Cook for 5 more minutes until the onions are deeply caramelized. Season with salt and black pepper, then remove from heat.

Step 4

Preheat the broiler on your oven to medium-high.

Step 5

Lightly toast the baguette halves under the broiler for 1-2 minutes, just until they are slightly crisp.

Step 6

Spread mayonnaise evenly across the cut sides of the toasted baguette halves.

Step 7

Top the bottom halves of the baguette with the caramelized onions, dividing them evenly.

Step 8

Place two slices of Gruyère cheese on top of the onions on each sandwich.

Step 9

Broil the sandwiches (open-faced) for 2-3 minutes or until the cheese is bubbly and melted.

Step 10

Sprinkle the melted cheese with fresh thyme, then close the sandwiches with the top halves of the baguette.

Step 11

Serve warm and enjoy your Frenchy Oniony Sandwich with a side of soup or salad!

Nutrition Facts

Serving size	742 grams (742.0g)

Amount per serving	% Daily Value*
Calories	1966

Total Fat 146.90g	188%
Saturated Fat 63.40g	317%
Polyunsaturated Fat 3.50g
Cholesterol 373mg	124%
Sodium 2079mg	90%
Total Carbohydrate 95.10g	35%
Dietary Fiber 7.90g	28%
Total Sugars 25.20g
Protein 72.80g	146%

Vitamin D 48IU	240%
Calcium 2165mg	167%
Iron 5mg	26%
Potassium 820mg	17%

*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

Fat: 66.3%

Protein: 14.6%

Carbs: 19.1%