Roasted Garlic Soup

Featured in: Vegetarian Favorites

This creamy roasted garlic soup transforms humble ingredients into something extraordinary. Whole heads of garlic are roasted until golden and sweet, then blended with potatoes and aromatic vegetables for a silky texture. The result is a comforting bowl that's both nourishing and deeply satisfying.

Perfect for cold weather or whenever you need something warming, this vegetarian soup comes together in just over an hour. The roasting process mellows the garlic's sharpness, leaving behind a rich, slightly sweet flavor that pairs beautifully with thyme and a hint of butter.

Updated on Wed, 21 Jan 2026 10:27:00 GMT
A warm bowl of Roasted Garlic Soup, garnished with fresh parsley and croutons, perfect for a cozy evening meal.  Save
A warm bowl of Roasted Garlic Soup, garnished with fresh parsley and croutons, perfect for a cozy evening meal. | cinnamonglow.com

The first time I made roasted garlic soup, I was recovering from a terrible winter cold and my apartment smelled like a warm Italian restaurant for three days straight. My neighbor actually knocked on my door thinking I was running some sort of garlic bread operation from my kitchen.

Last February, when my best friend was feeling under the weather, I showed up at her door with a container of this soup. She texted me two hours later saying it was the first time her appetite had returned in days, and she immediately asked for the recipe.

Ingredients

  • 4 large heads of garlic: Roasting these whole heads creates an unbelievable sweetness that becomes the soul of the soup
  • 2 tablespoons olive oil: Helps the garlic caramelize and roast evenly
  • 2 tablespoons unsalted butter: Creates a rich foundation for sautéing the onions
  • 1 medium yellow onion: Adds subtle sweetness and depth
  • 1 large russet potato: The secret to achieving that velvety, creamy texture without heavy cream
  • 4 cups low-sodium vegetable broth: Forms the base while keeping the flavors bright
  • 1 cup whole milk or plant-based milk: Adds just enough creaminess without overwhelming the delicate garlic flavor
  • 1/2 teaspoon dried thyme: Earthy and warm, complements the roasted garlic perfectly
  • 1 bay leaf: A classic aromatic that quietly enhances everything
  • Salt and freshly ground black pepper: Essential for bringing all the flavors together
  • 2 tablespoons chopped fresh parsley: Fresh herb brightness cuts through the richness

Instructions

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Roast the garlic until golden and tender:
Preheat your oven to 400°F and slice the tops off the garlic heads to expose each clove. Drizzle with olive oil, wrap snugly in foil, and roast for 35 to 40 minutes until the cloves are soft and caramelized. Let them cool briefly before squeezing the sweet roasted garlic from its skins.
Build your flavor foundation:
Melt the butter in a large pot over medium heat and add the chopped onion. Sauté until translucent and fragrant, about 5 minutes, taking your time to let the onion soften without browning.
Simmer everything together:
Add the diced potato, roasted garlic, thyme, bay leaf, and vegetable broth to the pot. Bring to a boil, then reduce the heat and let it simmer gently for 15 minutes until the potatoes are completely tender.
Transform into silky smoothness:
Fish out and discard the bay leaf, then use an immersion blender to purée the soup until it is perfectly smooth and creamy. If you are using a standard blender, work in batches and be careful with hot liquids.
Add the finishing touch:
Return the soup to the pot and stir in the milk, heating gently just until warmed through. Season generously with salt and pepper, tasting as you go.
Serve with love:
Ladle the soup into bowls and sprinkle with fresh parsley and croutons if you like. Watch people is faces light up when they take that first spoonful.
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Deep golden roasted garlic is blended into this creamy soup, served hot in a rustic earthenware bowl.  Save
Deep golden roasted garlic is blended into this creamy soup, served hot in a rustic earthenware bowl. | cinnamonglow.com

This soup has become my go-to comfort food, the kind that makes you feel taken care of from the inside out. Something about the simple, honest ingredients coming together feels like a hug in a bowl.

Making It Your Own

I have learned that a tiny pinch of cayenne pepper works wonders in the background, adding just enough warmth to make you sit up and notice without overpowering the gentle garlic flavor. It is the kind of secret that makes people wonder what exactly makes this version so special.

Perfect Pairings

A hunk of crusty bread is nonnegotiable here, preferably something with a nice chewy crust that can hold up to being dunked. The contrast between the silky soup and crunchy bread creates this perfect textural harmony that feels surprisingly complete.

Meal Prep Magic

This soup actually tastes better the next day, which means you can roast the garlic on Sunday and have the most incredible Monday lunch waiting for you. The flavors deepen and meld together in the refrigerator in ways that feel almost magical.

  • Roast extra garlic heads while the oven is hot and use the leftovers for spreading on bread
  • The soup freezes beautifully for up to three months if you want to keep some emergency comfort food on hand
  • Reheat gently over low heat, adding a splash more milk if it thickens too much
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Velvety Roasted Garlic Soup with a smooth texture, topped with herbs and ready to pair with crusty bread. Save
Velvety Roasted Garlic Soup with a smooth texture, topped with herbs and ready to pair with crusty bread. | cinnamonglow.com

There is something profoundly satisfying about turning humble ingredients into something this special and comforting.

Recipe FAQ Section

How do I roast garlic for soup?

Slice the tops off garlic heads to expose cloves, drizzle with olive oil, wrap in foil, and roast at 400°F for 35-40 minutes until soft and golden. Let cool slightly before squeezing out the softened cloves.

Can I make this soup vegan?

Absolutely. Substitute plant-based butter for regular butter and use unsweetened plant-based milk instead of dairy milk. The soup remains just as creamy and delicious.

Why add potato to garlic soup?

Potato acts as a natural thickener, giving the soup body and a velvety smooth texture without the need for heavy cream. It also balances the garlic flavor with subtle sweetness.

How long does roasted garlic soup keep?

Store cooled soup in an airtight container in the refrigerator for up to 4 days. Reheat gently over medium-low heat, adding a splash of milk or broth if needed to adjust consistency.

What goes well with garlic soup?

Crusty bread or homemade croutons are perfect for dipping. A simple green salad with vinaigrette balances the richness. For a heartier meal, pair with a grilled cheese sandwich.

Roasted Garlic Soup

Comforting velvety soup with mellow roasted garlic sweetness, perfect for cozy days.

Prep duration
15 min
Time to cook
50 min
Complete duration
65 min
Created by Hannah Collins

Classification Vegetarian Favorites

Skill level Easy

Cultural Origin European

Output 4 Portion count

Dietary considerations Meat-free, Without gluten

Components

Roasted Garlic

01 4 large heads garlic
02 2 tablespoons olive oil

Soup Base

01 2 tablespoons unsalted butter
02 1 medium yellow onion, finely chopped
03 1 large russet potato, peeled and diced
04 4 cups low-sodium vegetable broth
05 1 cup whole milk or unsweetened plant-based milk
06 1/2 teaspoon dried thyme
07 1 bay leaf
08 Salt and freshly ground black pepper to taste

Garnish

01 2 tablespoons chopped fresh parsley
02 Croutons or toasted bread optional

Method

Phase 01

Roast the Garlic: Preheat oven to 400°F. Slice tops off garlic heads to expose cloves. Drizzle with olive oil, wrap in foil, and roast for 35-40 minutes until soft and golden. Cool slightly, then squeeze roasted garlic from skins.

Phase 02

Sauté Aromatics: Melt butter in large pot over medium heat. Add chopped onion and sauté until translucent, approximately 5 minutes.

Phase 03

Simmer Soup Base: Add diced potato, roasted garlic, thyme, bay leaf, and vegetable broth. Bring to boil, reduce heat, and simmer 15 minutes until potatoes are tender.

Phase 04

Purée Soup: Remove bay leaf. Purée soup until smooth using immersion blender or transfer in batches to standard blender.

Phase 05

Finish and Season: Return soup to pot. Stir in milk and heat gently until warmed through. Season with salt and pepper to taste.

Phase 06

Serve: Ladle into bowls and garnish with fresh parsley. Add croutons or toasted bread if desired.

Tools needed

  • Chef's knife
  • Baking sheet and aluminum foil
  • Large soup pot
  • Immersion blender or standard blender
  • Ladle

Allergy details

Review each component for potential allergens and consult with a healthcare professional if you're uncertain about any ingredients.
  • Contains milk if using dairy milk and butter
  • Gluten may be present in croutons or bread; use gluten-free alternatives if needed

Nutritional breakdown (per portion)

These values are provided as estimates only and shouldn't replace professional medical guidance.
  • Energy: 185
  • Fats: 9 g
  • Carbohydrates: 23 g
  • Protein Content: 4 g