Roasted Garlic and Cauliflower Soup (Creamy & Cozy)

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Author: Opera Cook
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Creamy cauliflower soup topped with roasted garlic and parsley in a white bowl.

If you’re searching for the ultimate comfort soup that’s creamy, cozy, and bursting with rich flavor—without being heavy or overly indulgent—look no further than this Roasted Garlic and Cauliflower Soup. With deeply caramelized garlic, tender roasted cauliflower, and velvety texture, this recipe turns humble ingredients into a luxurious fall dish.

It’s naturally gluten-free, vegan-adaptable, no pork, no alcohol, and ideal for weeknight meals, meal prep, or elegant holiday starters. Let’s dive into the ultimate roasted garlic cauliflower soup that tastes like it came from a high-end bistro—yet it’s made with everyday ingredients at home.

Why You’ll Love This Roasted Garlic Cauliflower Soup

  • 🧄 Loaded with savory roasted garlic flavor

  • 🥦 Naturally gluten-free and dairy-optional

  • 🌱 Vegan-friendly and allergy-conscious

  • 🍂 The perfect cozy meal for chilly fall days

  • 🥣 Easy to batch cook and freeze

  • 🧘 Light but satisfying and nourishing


🛒 Ingredients You’ll Need

🔸 For Roasting:

  • 1 large head of cauliflower, cut into florets

  • 1 whole head of garlic (unpeeled)

  • 2 tablespoons olive oil

  • Salt & pepper, to taste

🔸 For the Soup Base:

  • 1 tablespoon olive oil

  • 1 medium yellow onion, chopped

  • 1 medium potato, peeled and diced (for creaminess)

  • 3–4 cups low-sodium vegetable broth

  • 1 teaspoon dried thyme (or 1 tbsp fresh)

  • ½ teaspoon ground white or black pepper

  • ¼–½ teaspoon smoked paprika (optional, for depth)

  • ½ teaspoon sea salt, or to taste

  • ½–¾ cup oat milk or coconut milk (optional for added creaminess)

  • Squeeze of fresh lemon juice (for brightness)

🔸 Optional Garnishes:

  • Fresh parsley or chives

  • Extra roasted garlic cloves

  • Olive oil drizzle

  • Toasted pine nuts or sunflower seeds

  • Crusty sourdough bread


🍽️ How to Make Roasted Garlic and Cauliflower Soup


🔪 Step 1: Roast the Cauliflower and Garlic

Roasting brings out the sweet, nutty flavors in cauliflower and transforms raw garlic into buttery, spreadable gold.

  1. Preheat oven to 400°F (200°C).

  2. Spread cauliflower florets on a parchment-lined baking sheet. Drizzle with 1–2 tablespoons olive oil and sprinkle with salt and pepper.

  3. Slice off the top ¼ inch of the garlic head to expose the cloves. Place on a small piece of foil, drizzle with a little olive oil, wrap, and place on the same sheet.

  4. Roast for 35–40 minutes, until the cauliflower is golden and fork-tender and the garlic is soft and caramelized.

🔥 Pro Tip: Let the roasted garlic cool slightly, then squeeze the cloves right out of their skins like butter.


🧅 Step 2: Build the Soup Base

  1. In a large soup pot or Dutch oven, heat 1 tablespoon olive oil over medium heat.

  2. Add chopped onion and sauté for 5–6 minutes until translucent.

  3. Stir in diced potato and cook for another 3–4 minutes.

  4. Add in your roasted cauliflower, squeezed garlic cloves, and thyme.

  5. Pour in vegetable broth (start with 3 cups) and bring to a simmer.


🕐 Step 3: Simmer and Blend

  1. Simmer soup for 15–20 minutes, or until potatoes are completely soft.

  2. Turn off heat. Use an immersion blender to purée the soup until creamy.

    • Alternatively, blend in batches in a heat-safe blender (carefully).

  3. Stir in your milk of choice (start with ½ cup) for creaminess.

  4. Taste and adjust seasoning. Add salt, pepper, or more broth to thin, if desired.

  5. Finish with a small squeeze of lemon juice to brighten flavors.


🌿 Step 4: Serve with Style

Ladle soup into warm bowls. Top with:

  • A swirl of oat milk or olive oil

  • Reserved roasted garlic cloves

  • Fresh parsley, chives, or microgreens

  • Toasted seeds or nuts for texture

  • Serve with crusty bread, flatbread, or crackers


🥖 What to Serve With This Soup

Side DishDescription
🥖 Crusty BreadSourdough, baguette, or seeded loaf
🥗 Fall SaladArugula with apples, walnuts, and vinaigrette
🫓 FlatbreadWarmed naan or herb focaccia
🥔 Roasted PotatoesFor an ultra-satisfying pairing
🧄 Garlic ChipsThin slices of roasted garlic for garnish

🧊 Storage & Freezer Tips

  • Fridge: Store in an airtight container for up to 5 days.

  • Freezer: Let soup cool completely, then freeze in portioned containers for up to 3 months.

  • To Reheat: Warm gently on the stovetop or microwave in 1-minute intervals, stirring between each.

This soup is excellent for meal prep and freezes beautifully without any texture loss.


🌱 Substitutions & Variations

🌿 Make it Vegan

This recipe is naturally vegan if you use non-dairy milk (oat, coconut, almond).

🧄 Add Extra Garlic Flavor

Use two heads of garlic if you’re a true garlic lover!

🥔 No Potato?

Try parsnip or a handful of soaked cashews blended in for creaminess.

🥦 Want Extra Veggies?

Add steamed broccoli, carrots, or even zucchini to the base.

🥣 Prefer Chunky Soup?

Reserve some roasted cauliflower and stir it in after blending.


🔍 Nutritional Breakdown (Estimates Per Serving)

  • Calories: ~190

  • Protein: 4g

  • Carbohydrates: 18g

  • Fat: 10g

  • Fiber: 4g

  • Sugar: 3g

Nutrition may vary depending on milk choice and portion size.


❓ Frequently Asked Questions (FAQs)

🔹 Can I use frozen cauliflower?

Yes! Just roast it the same way as fresh (no need to thaw). You may need to adjust roasting time slightly.

🔹 Is this soup spicy?

Not at all. It’s mild and cozy. For a kick, add chili flakes or cayenne.

🔹 Can I make it without any milk?

Absolutely. The potato already gives it creaminess, but adding oat or coconut milk enhances that texture.

🔹 Is roasted garlic overpowering?

Not at all! Roasted garlic becomes mild, sweet, and buttery when cooked.

🔹 Can I make this in advance?

Yes! This soup tastes even better the next day once the flavors meld.

🔹 What if I don’t have an immersion blender?

A regular blender works fine. Blend in batches and let it cool slightly to avoid pressure build-up.


🧡 Reader Reviews & Tips

🧄 Ashley from Vermont: “I added a pinch of curry powder and topped with roasted chickpeas — my kids devoured it!”

🍞 Luis from Oregon: “I served it with garlic naan and a kale salad. Restaurant quality!”

🥔 Tara from Texas: “I didn’t have potatoes, so I used a scoop of cooked white beans — still super creamy!”


🥰 Final Thoughts

This Roasted Garlic and Cauliflower Soup is everything you want in a fall comfort dish: creamy without cream, indulgent without guilt, and complex without complication.

The roasting process elevates the flavor, while simple ingredients keep it accessible for everyday cooking. Whether you’re curled up on the couch, prepping for a dinner party, or adding warmth to your weeknight meal rotation, this soup has you covered.

Opera Cook!
Opera Cook

Welcome to my kitchen! I’m Opera Cook, a passionate home cook sharing tried-and-true comfort recipes made with love. Whether you’re craving fluffy pancakes, rustic bread, or rich chocolate desserts—you’re in the right place. Let’s bake something wonderful together!

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