French Onion Grilled Cheese with Roasted Onion & Garlic Infused Olive Oil Blend

Golden sourdough, sweet caramelized onions, nutty Gruyère, and buttery Parmesan come together in this cozy sandwich with real French onion flavor. Roasted Onion & Garlic Infused Olive Oil Blend deepens the onions, brings savory roasted garlic notes into the skillet, and helps the whole sandwich taste rich, layered, and extra satisfying. It is the kind of lunch or dinner that feels easy enough for a weekday but still special enough for a relaxed dinner at home.

Garden Infuzions

French Onion Grilled Cheese with Roasted Onion & Garlic Infused Olive Oil Blend

A golden grilled cheese layered with sweet caramelized onions, melty Gruyère, and the savory depth of Roasted Onion & Garlic Infused Olive Oil Blend for a cozy sandwich that feels special any night of the week.

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Prep Time 15 minutes mins

Cook Time 25 minutes mins

Total Time 40 minutes mins

Servings: 2 sandwiches

Course: Appetizers, Dinner, Lunch

Cuisine: American Classics, French, Fusion Cuisine

Ingredients Equipment Method Notes

Ingredients

  

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Ingredients

• 2 tablespoons Roasted Onion & Garlic Infused Olive Oil Blend
• 2 medium yellow onions thinly sliced
• 1 tablespoon unsalted butter
• 1/2 teaspoon kosher salt
• 1/4 teaspoon black pepper
• 1 teaspoon fresh thyme leaves
• 4 slices sourdough bread
• 1 tablespoon Dijon mustard
• 1 1/2 cups shredded Gruyère cheese
• 1/2 cup shredded mozzarella cheese
• 2 tablespoons grated Parmesan cheese

Equipment

• 1 Large skillet For caramelizing onions and grilling the sandwiches
• 1 Spatula For flipping
• 1 Chef Knife For slicing onions
• 1 Cutting board For prep
• 1 Box grater For shredding cheese

Method

 

Instructions

1. 1. Warm the Roasted Onion & Garlic Infused Olive Oil Blend and butter in a large skillet over medium-low heat.
2. 2. Add the sliced onions, salt, and pepper, then cook slowly, stirring often, until the onions are soft, jammy, and deeply golden, about 18 to 20 minutes.
3. 3. Stir in the thyme and cook for 1 minute more, then transfer the onions to a plate.
4. 4. Spread Dijon mustard on two slices of bread and divide the Gruyère, mozzarella, caramelized onions, and Parmesan between the sandwiches. Top with the remaining bread slices.
5. 5. Wipe out the skillet if needed, then brush the outside of each sandwich lightly with a little more Roasted Onion & Garlic Infused Olive Oil Blend.
6. 6. Cook the sandwiches over medium-low heat until the bread is crisp and golden and the cheese is melted, about 3 to 4 minutes per side.
7. 7. Rest for 1 minute, then slice and serve warm.

Notes

Slow onion cooking makes this sandwich taste fuller and more balanced, so do not rush that step. If the bread browns too quickly, lower the heat and keep going until the cheese melts through.

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Recipe Tips

Cook the onions slowly until they turn deeply golden and sweet before assembling the sandwiches. Use medium-low heat for the bread so the cheese melts before the outside gets too dark.

Serving Suggestions

Serve this grilled cheese with tomato soup, a crisp green salad, or a handful of kettle chips for a simple, comforting meal.

Storage

This sandwich is best enjoyed right away. If you need to hold it briefly, keep it warm on a rack in a low oven so the crust stays crisp.

Variations

Swap Gruyère for Fontina or Swiss cheese, or add a thin layer of Dijon mustard for a sharper finish. A little chopped thyme can be tucked into the onions for extra herbal aroma.

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