French Onion Soup Sandwiches Recipe

Name: French Onion Soup Sandwiches
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: 2 medium yellow onions, peeled cut in half and sliced into 1/4-inch thick semi-circles; 3 tablespoon unsalted butter,softened, plus more for buttering the bread; 1 tablespoon olive oil; 1 scant teaspoon coarse sea salt; 1 teaspoon fresh thyme leaves; 1/2 teaspoon fresh cracked black pepper; pinch of granulated sugar; 3 tablespoons beef broth, beer, or white wine to deglaze the pan; 1/2 cup finely shredded Gruyere cheese, please use more cheese to your own taste; 4 slices bread

Servings: persons

1
Place a medium, heavy bottom sauce pan over medium heat. Add the butter and olive oil and stir until butter is melted. Add the sliced onions all at once. Stir to coat the onions in the fat. Allow onions to cook, undisturbed, for about 4 minutes. Add salt, thyme, and pepper and stir. Place lid on the pan and allow to onions to cook for about 4 minutes at a time. Lower the heat if the onions are browning too quickly. Remove the lid to stir the onions every so often. The onions will begin to brown, break down, and resemble an onion jam.
2
When onions are entirely browned and completely soft, add your liquid (beef broth, beer, wine, or water) to the pan. Using a wooden spoon, scrape any burned bits off the bottom of the pan as the liquid evaporates. This takes about 30 seconds. Remove pan from heat and allow to rest while you assemble the sandwiches.
3
Butter one side of each slice of bread. On the unbuttered side add a good sprinkling of gruyere, top with warm onion mixture, top with more cheese and the final piece of sandwich bread. Repeat process in assembling the other sandwich.
4
Cook sandwiches over medium heat in a medium saute pan. Flip and cook until golden on the outside and melty on the inside. Serve immediately.

183

kcal

Calories

Fat

Carbs

Protein

Fat Carbs Protein

* Per serving · 4 servings · Values may vary.

Tips for the best results

Read through all the steps once before you start and measure out your ingredients first — it makes everything go more smoothly.
Taste as you go and adjust the seasoning before serving.
Avoid overcrowding the pan — cook in batches if needed for the best texture.
Let the dish rest for a few minutes before serving so the flavors settle.
Store leftovers in an airtight container in the fridge and enjoy within a few days.

Variations & substitutions

Use a neutral oil or a plant-based spread in place of butter for a dairy-free version.
Brown sugar instead of white sugar adds a deeper, more caramel-like flavor.

No specific allergen information. Please check the ingredient list for possible allergens.

My Personal Notes

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How did you like this recipe?

This recipe makes 4 servings. You can adjust the portion size directly on this page.

You need 10 ingredients. The key ingredients include: 2 medium yellow onions, peeled cut in half and sliced into 1/4-inch thick semi-circles, 3 tablespoon unsalted butter,softened, plus more for buttering the bread, 1 tablespoon olive oil, 1 scant teaspoon coarse sea salt, and more.

Yes, French Onion Soup Sandwiches falls under the Soups & Stews category and is a great choice for this type of meal.

Store leftovers in an airtight container in the refrigerator for up to 3–4 days. Reheat gently before serving.

That's it — enjoy your meal!

French Onion Soup Sandwiches

Tips for the best results

Variations & substitutions

My Personal Notes

How did you like this recipe?

Frequently Asked Questions