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Creamy Roasted Garlic and Onion Soup

Elina James
Warm, rich, and irresistibly comforting, this Creamy Roasted Garlic and Onion Soup is a cozy bowl of pure flavor. Slow-roasted garlic and caramelized onions create a deep, savory base that’s blended into a silky, creamy texture with every spoonful.
Prep Time 20 minutes
Cook Time 50 minutes
Total Time 1 hour 10 minutes
Course Soups
Cuisine American
Servings 4 servings
Calories 300 kcal

Ingredients
  

  • 3 large onions, sliced
  • 2 whole garlic bulbs
  • 2 tablespoons olive oil
  • 2 tablespoons butter
  • 3 cups vegetable or chicken broth
  • 1 cup heavy cream
  • 1 teaspoon dried thyme
  • Salt to taste
  • Black pepper to taste
  • Optional garnish: fresh chives or parsley

Instructions
 

  • Preheat the oven to 400°F (200°C).
  • Slice the tops off the garlic bulbs to expose the cloves.
  • Place garlic bulbs and sliced onions on a baking sheet.
  • Drizzle with olive oil and season lightly with salt and pepper.
  • Roast for 35–40 minutes until garlic is soft and onions are golden and caramelized.
  • Remove from the oven and allow to cool slightly.
  • Squeeze roasted garlic cloves out of their skins.
  • Melt butter in a large pot over medium heat.
  • Add roasted onions and garlic to the pot and stir gently.
  • Pour in the broth and add dried thyme.
  • Simmer for 10–15 minutes to allow flavors to blend.
  • Blend the soup until smooth using an immersion blender or countertop blender.
  • Stir in heavy cream and gently reheat without boiling.
  • Taste and adjust seasoning before serving.
Keyword Creamy Roasted Garlic and Onion Soup