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.
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Recipe Information
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
Instructions
Melt the butter in a large skillet over medium heat.
Add the sliced onions and cook, stirring occasionally, for about 15 minutes until they soften and turn golden brown.
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.
Preheat the broiler on your oven to medium-high.
Lightly toast the baguette halves under the broiler for 1-2 minutes, just until they are slightly crisp.
Spread mayonnaise evenly across the cut sides of the toasted baguette halves.
Top the bottom halves of the baguette with the caramelized onions, dividing them evenly.
Place two slices of Gruyère cheese on top of the onions on each sandwich.
Broil the sandwiches (open-faced) for 2-3 minutes or until the cheese is bubbly and melted.
Sprinkle the melted cheese with fresh thyme, then close the sandwiches with the top halves of the baguette.
Serve warm and enjoy your Frenchy Oniony Sandwich with a side of soup or salad!
Nutrition Facts
Calories |
582 | ||
|---|---|---|---|
% Daily Value* |
|||
| Total Fat | 32.7 g | 42% | |
| Saturated Fat | 14.8 g | 74% | |
| Polyunsaturated Fat | 0.7 g | ||
| Cholesterol | 72 mg | 24% | |
| Sodium | 998 mg | 43% | |
| Total Carbohydrate | 52.3 g | 19% | |
| Dietary Fiber | 3.9 g | 14% | |
| Total Sugars | 5.9 g | ||
| Protein | 19.9 g | 40% | |
| Vitamin D | 0.4 mcg | 2% | |
| Calcium | 447 mg | 34% | |
| Iron | 2.3 mg | 13% | |
| Potassium | 262 mg | 6% | |
*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.
