French Onion Soup (Gluten Free)
This cozy and savory gluten-free French onion soup is made with deeply caramelized onions, rich broth, and finished with bubbly melted cheese over crisp gluten-free bread. A fall favorite that brings comfort to every bowl.
Equipment
- heavy-bottomed pot
- oven-safe soup bowls
- baking sheet
- broiler or oven
- cutting board and knife
- wooden spoon
Ingredients
- 4 large yellow onions, thinly sliced
- 2 tbsp olive oil
- 2 tbsp unsalted butter
- 1 tsp salt
- 0.5 tsp black pepper
- 2 tsp fresh thyme (or ½ tsp dried thyme)
- 1 bay leaf
- 4 cups beef broth (or vegetable broth for vegetarian version)
- 1 cup water
- 1 tsp apple cider vinegar or balsamic vinegar
- 4 thick slices gluten-free rustic bread
- 1 cup shredded Gruyère or mozzarella cheese
Instructions
- Heat olive oil and butter in a heavy-bottomed pot over medium-low heat. Add sliced onions and cook for about 40 minutes, stirring occasionally, until deeply golden and caramelized. Season with salt, pepper, thyme, and bay leaf.
- Add vinegar to deglaze the pot. Pour in the broth and water. Bring to a simmer, then reduce heat and cook uncovered for 25 minutes. Adjust seasoning as needed. Discard the bay leaf before serving.
- While soup simmers, toast the gluten-free bread slices in a 375°F oven until golden and crisp.
- Ladle hot soup into oven-safe bowls. Top with toasted bread and shredded cheese. Broil for 3–5 minutes until bubbly and golden. Serve warm.
Notes
Use rustic gluten-free bread that holds up well in broth. For a lighter version, opt for vegetable broth. If making dairy-free, swap butter and cheese with plant-based alternatives. Store leftovers without bread and cheese to retain texture.
Nutrition
Calories: 325kcalCarbohydrates: 26gProtein: 12gFat: 20gSaturated Fat: 10gPolyunsaturated Fat: 1gMonounsaturated Fat: 6gCholesterol: 45mgSodium: 960mgPotassium: 280mgFiber: 3gSugar: 7gVitamin A: 400IUVitamin C: 8mgCalcium: 220mgIron: 1.2mg
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