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roasted garlic potato soup italian style

Silky Italian-Style Roasted Garlic Potato Soup

This creamy roasted garlic potato soup uses slow-roasted garlic, butter-soft potatoes, leeks, and parmesan. The texture stays smooth and rich without feeling heavy. It suits busy nights, reheats well, and tastes even better the next day.
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Prep Time 20 minutes
Cook Time 45 minutes
Total Time 1 hour 5 minutes
Servings: 4 people
Course: Main Course, Soup, Starter
Cuisine: Comfort food, Italian-inspired
Calories: 380
Ingredients Method Notes

Ingredients
  

  • 1 whole head garlic
  • Olive oil 1 tablespoon
  • 2 tablespoons unsalted butter
  • 1 medium onion chopped
  • 1 leek white and light green part, sliced
  • 2 tablespoons all-purpose flour
  • 2 lb potatoes Yukon Gold, Russet, or a mix, peeled
  • 4 –5 cups low-sodium chicken or vegetable broth
  • 1 cup whole milk
  • 1/4 cup heavy cream
  • 1 teaspoon fresh or dried thyme
  • 3/4 cup grated Parmigiano-Reggiano
  • Salt to taste
  • Black pepper to taste
Optional toppings
  • Extra grated parmesan
  • Chopped chives
  • Gruyère grilled cheese croutons

Method
 

Roast the garlic
  1. Heat oven to 375°F. Cut the top off the garlic head to expose the cloves. Drizzle with olive oil. Wrap in foil. Roast 40–45 minutes until soft and golden. Cool slightly. Squeeze out the cloves.
Cook the potatoes
  1. Boil peeled potatoes in salted water about 15 minutes until fork-tender. Drain. Let cool briefly. Cut into even cubes.
Build the base
  1. Melt butter in a large Dutch oven over medium heat. Add onion and leek. Cook 6–8 minutes until soft and sweet. Stir often.
Add flour
  1. Sprinkle flour over the vegetables. Cook 60–90 seconds. Stir well to remove raw flour taste.
Add liquids
  1. Slowly pour in 4 cups broth while stirring. Add milk, cream, and thyme. Bring to a gentle boil. Reduce heat. Simmer 2–3 minutes.
Add potatoes and garlic
  1. Add cubed potatoes and roasted garlic cloves. Stir in grated parmesan. Cook 2–3 minutes until everything warms through.
Blend
  1. Blend with an immersion blender until smooth and glossy. For a thinner soup, add extra broth a little at a time, up to 1 cup.
Season and serve
  1. Taste. Add salt and black pepper as needed. Serve hot with chosen toppings.

Notes

• Yukon Gold potatoes give a creamy body. Russets give a lighter, smoother purée.
• Blend gently. Over-blending leads to a sticky texture.
• For make-ahead meals, store without cream. Add dairy during reheating.
• Reheat slowly over low heat and stir often.
• Vegetarian version works well with vegetable broth.