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French Onion Soup-Style Melting Onions

French Onion Soup-Style Melting Onions


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  • Author: Lina
  • Total Time: 55 minutes
  • Yield: About 4 cups 1x
  • Diet: Gluten Free

Description

Master the art of French Onion Soup-style melting onions—a slow caramelization process that transforms simple yellow onions into silky, deeply flavorful, golden-brown jewels. This versatile recipe enhances soups, stews, sandwiches, and many savory dishes with natural sweetness, rich color, and gourmet depth. With easy ingredients and basic steps, you’ll create a comforting essential that brings warmth and heartiness to any meal.


Ingredients

Scale

Main Ingredients

  • 4 large yellow onions, peeled and thinly sliced
  • 2 tablespoons unsalted butter
  • 1 tablespoon olive oil
  • 1 teaspoon salt
  • 1/2 teaspoon sugar (optional)

Optional Aromatics

  • 23 sprigs fresh thyme or 1 bay leaf

Optional Deglazing

  • 1/4 cup red or white wine

Instructions

  1. Prepare the Onions: Peel and slice your yellow onions into uniform thin slices to ensure even cooking and a perfect melt-in-your-mouth texture.
  2. Heat the Butter and Oil: In a large, heavy-bottomed skillet or pot over medium-low heat, combine the unsalted butter and olive oil to create a balanced fat base that prevents burning and promotes a silky finish.
  3. Add Onions and Salt: Add the sliced onions to the pan and sprinkle with salt, which helps draw out moisture and accelerates softening without steaming.
  4. Slow Cook and Stir: Reduce the heat to low and cook the onions slowly, stirring every few minutes to prevent sticking and encourage gradual sugar release. Patience is key—avoid rushing the caramelization.
  5. Caramelize to Perfection: Continue cooking for 30-45 minutes until the onions turn deep golden-brown. If they start sticking or drying out, add a splash of water or broth to loosen the pan and scrape up flavorful browned bits.
  6. Optional Step – Add Herbs and Wine: Stir in fresh thyme or bay leaf and pour in a splash of wine to deglaze the pan. Let the liquid simmer until evaporated, enhancing the flavor with brightness and complexity.
  7. Final Taste and Adjust: Remove herbs, taste, and adjust seasoning by adding a pinch of sugar for extra sweetness or more salt to deepen flavor. Your French Onion Soup-Style Melting Onions are now ready to use.

Notes

  • Cook low and slow to avoid burning and ensure deep caramelization.
  • Use a heavy-bottomed pan for even heat distribution.
  • Maintain onions in a single layer where possible for proper browning.
  • Stir often to prevent sticking and promote even cooking.
  • Deglaze the pan with splashes of broth, wine, or water as needed to lift browned bits.
  • Slice onions uniformly to ensure consistent cooking.
  • Optional sugar speeds caramelization if onions are not sufficiently sweet.
  • Use olive oil instead of butter for a vegan version.
  • Experiment with spices like smoked paprika or herbs such as rosemary for variations.
  • Freeze leftovers in airtight containers for up to 3 months.
  • Reheat gently on low heat with a splash of water or broth to revive texture.
  • Prep Time: 10 minutes
  • Cook Time: 45 minutes
  • Category: Appetizers
  • Method: Stovetop Slow Cooking
  • Cuisine: French

Nutrition

  • Serving Size: 1/2 cup
  • Calories: 70
  • Sugar: 6g
  • Sodium: 250mg
  • Fat: 5g
  • Saturated Fat: 3g
  • Unsaturated Fat: 2g
  • Trans Fat: 0g
  • Carbohydrates: 7g
  • Fiber: 1g
  • Protein: 1g
  • Cholesterol: 10mg