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Two bowls of cream of onion soup.

Cream of Onion Soup

Chef Jenn
Cream of Onion Soup brings out the natural sweetness of roasted onions in a rich, creamy dish. Perfect as a starter or main meal, this soup is easy to make, with Spanish onions, garlic, and thyme. Pair it with crusty bread or a sandwich for a full meal.
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Prep Time 5 minutes
Cook Time 25 minutes
Total Time 30 minutes
Course Soup
Cuisine American
Servings 6 servings
Calories 342 kcal

Ingredients
  

  • 2 Spanish onions peeled and cut in quarters
  • 1 yellow onion peeled and cut in quarters
  • 2 shallots peeled and cut in half
  • 2 cloves garlic peeled but left whole
  • 2 tablespoons olive oil
  • salt and pepper
  • ¼ cup salted butter
  • 2 sprigs fresh thyme
  • 4 cups chicken broth use low or no sodium broth to control the salt
  • 1 cup heavy whipping cream

Instructions
 

  • Set your oven to 450°F. Toss the onions, shallots, and garlic with olive oil, seasoning with salt and pepper.
  • Spread the seasoned vegetables on a baking sheet and roast for 15-20 minutes until soft and golden around the edges.
  • Transfer the roasted onions to a soup pot. Add the butter and thyme and sauté for 3-4 minutes over medium heat.
  • Pour in the chicken broth and let it simmer for about 20 minutes, allowing the flavors to meld and the soup to reduce slightly.
  • Remove the thyme sprigs. Blend the mixture until smooth using either an immersion blender or by transferring it to a standard blender.
  • Stir in the cream, heat through, adjust the seasoning, and serve.

Notes

Chef Jenn's Tips

  • Keep the onions fairly close together on the baking sheet so they don't burn.
  • Substitute the chicken broth with vegetable broth to make a vegetarian version.
  • Sautéing the onions in butter after roasting enhances the richness of the soup, so don’t rush this step.

Nutrition

Serving: 1cupCalories: 342kcalCarbohydrates: 20gProtein: 7gFat: 28gSaturated Fat: 15gPolyunsaturated Fat: 2gMonounsaturated Fat: 9gTrans Fat: 0.3gCholesterol: 65mgSodium: 133mgPotassium: 471mgFiber: 3gSugar: 11gVitamin A: 838IUVitamin C: 11mgCalcium: 79mgIron: 1mg

A Note on Nutritional Information

Nutritional information for this recipe is provided as a courtesy and is calculated based on available online ingredient information. It is only an approximate value. The accuracy of the nutritional information for any recipe on this site cannot be guaranteed.

Keyword caramelized onion soup, cream soup, easy cream soup, onion soup
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