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French Onion Gnocchi Soup with Gruyere

French Onion Gnocchi Soup with Gruyere


  • Author: Lina
  • Total Time: 1 hour 15 minutes
  • Yield: 4 servings 1x
  • Diet: Vegetarian (if using vegetable broth and no wine), can be Gluten Free if using gluten free broth and gnocchi

Description

This French Onion Gnocchi Soup with Gruyere is a comforting and sophisticated dish featuring slow-caramelized yellow onions, tender potato gnocchi, and melted Gruyere cheese. Perfect for chilly evenings or anytime you crave a warm, flavorful meal that wonderfully combines creamy textures and rich savory flavors.


Ingredients

Scale

Soup Base

  • 4 large yellow onions, thinly sliced
  • 4 tablespoons unsalted butter
  • 3 cloves garlic, minced
  • 1/2 cup dry white wine (optional)
  • 6 cups beef or vegetable broth
  • 2 sprigs fresh thyme
  • 2 bay leaves
  • Salt and freshly ground black pepper, to taste

Gnocchi and Cheese

  • 1 pound potato gnocchi (store-bought or homemade)
  • 1 1/2 cups shredded Gruyere cheese

Servings and Garnishes

  • Baguette or rustic bread, for toasting and serving
  • Fresh thyme sprigs or finely chopped parsley, for garnish
  • Pinch of nutmeg or cracked black pepper, optional garnish

Instructions

  1. Caramelize the Onions: Slowly cook the thinly sliced yellow onions in butter over medium-low heat, stirring occasionally, for 30 to 40 minutes until they become golden brown and sweetly fragrant. This step builds the rich flavor base of the soup.
  2. Deglaze and Simmer: Add minced garlic and cook for about 1 minute. Pour in the white wine (if using) to deglaze the pan, scraping up any browned bits. Next, add the broth, fresh thyme, and bay leaves. Bring to a gentle simmer and cook for about 20 minutes to meld the flavors.
  3. Cook the Gnocchi: In a separate pot, bring salted water to a boil. Add the gnocchi and cook just until they float to the surface, about 2 to 3 minutes. Drain well and set aside.
  4. Assemble and Melt the Cheese: Ladle the hot soup and onions into oven-safe bowls. Add cooked gnocchi on top, then generously pile shredded Gruyere over each bowl. Place bowls under a preheated broiler until the cheese melts, bubbles, and turns lightly golden, about 2 to 4 minutes. Watch carefully to avoid burning.

Notes

  • Take your time caramelizing onions to achieve full depth of flavor—rushing will lessen the richness.
  • Use freshly grated Gruyere for a creamier and better-melting cheese topping.
  • Opt for a high-quality broth or homemade stock for the best savory profile.
  • Cook gnocchi only until they float to keep them tender and prevent mushiness.
  • Broil cheese carefully and watch closely to avoid burning.
  • For a vegetarian version, use vegetable broth and skip or substitute white wine with balsamic vinegar.
  • Freeze soup without gnocchi; add fresh gnocchi when reheating for best texture.
  • Prep Time: 15 minutes
  • Cook Time: 1 hour
  • Category: Appetizers
  • Method: Baking
  • Cuisine: French

Nutrition

  • Serving Size: 1 bowl (about 1 1/2 cups)
  • Calories: 320
  • Sugar: 9 g
  • Sodium: 850 mg
  • Fat: 15 g
  • Saturated Fat: 9 g
  • Unsaturated Fat: 5 g
  • Trans Fat: 0 g
  • Carbohydrates: 32 g
  • Fiber: 3 g
  • Protein: 12 g
  • Cholesterol: 40 mg

Keywords: French onion soup, gnocchi soup, Gruyere cheese soup, caramelized onion soup, comfort food, French cuisine, cheesy soup