I made this Thick Creamy Soup with roasted garlic and sharp cheddar and I’m not kidding when it behaves like adult mac and cheese in a bowl you’ll keep stealing spoons from.

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I’m obsessed with this Roasted Garlic Cheddar Cauliflower Soup because it nails comfort without being boring. I love how the roasted garlic punches through, not really shy, and the sharp cheddar cheese melts into a thick creamy soup that actually tastes like something I’d crave on a rough day.

I adore this Cauliflower Soup Recipe; cauliflower whispers while the cheese grabs center stage. But it’s honest food, not fussed-over plating.

I’ll eat it straight from a mug, with crusty bread or nothing at all. Serious, simple, and totally satisfying.

I want seconds every time, no regrets. It’s dumb but true.

Ingredients

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Cauliflower: creamy body and mild taste, makes the soup feel comforting and not heavy.
Roasted garlic: sweet, mellow garlic punch that’s cozy and totally addictive.
Olive oil: helps roast and adds a light, fruity background note.
Butter: gives silkiness and that homey, buttery mouthfeel you’ll love.
Onion: builds savory depth, the backbone for all those cozy flavors.
Carrot: subtle sweetness and a little color, not just for looks.
Celery: fresh crunch and a hint of green, trust me it helps.
Flour: thickens without being chalky, keeps the soup clingy to the spoon.
Broth: salty liquid base that ties everything together and adds savoriness.
Milk: light creaminess that softens sharp cheddar without masking it.
Heavy cream: richer, silkier finish when you want something indulgent.
Cheddar: sharp, cheesy warmth that makes this soup totally craveable.
Potato: gives extra body and that satisfying spoonable thickness.
Salt: wakes up flavors, don’t skip the final taste check.
Pepper: a little bite to balance the cheese and cream.
Nutmeg: tiny floral note that’s oddly comforting in creamy soups.
Chives: fresh, oniony pop on top, looks nice too.
Parsley: bright herb lift if you want something greener.
Smoked paprika: smoky heat option for a subtle kick, optional.
Cayenne: quick punch of heat if you like it spicy.

Ingredient Quantities

1 large head cauliflower, cut into florets (about 1.5 to 2 pounds)

1 whole head garlic for roasting (or 8 to 10 peeled cloves)

2 tablespoons olive oil, plus extra for roasting garlic

3 tablespoons unsalted butter

1 medium yellow onion, diced

1 medium carrot, peeled and diced

1 celery stalk, diced (optional but recommended)

2 tablespoons all purpose flour

4 cups low sodium chicken broth or vegetable broth

1 cup whole milk

1/2 cup heavy cream (optional for extra richness)

2 to 2 1/2 cups sharp cheddar cheese, grated, packed

1 medium russet potato, peeled and diced (for extra body, optional)

1 teaspoon kosher salt, plus more to taste

1/2 teaspoon freshly ground black pepper, plus more to taste

1/8 teaspoon ground nutmeg (optional)

Chopped chives or parsley for garnish

Pinch of smoked paprika or cayenne for a little heat, optional

How to Make this

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1. Preheat oven to 400 F. Slice the top off the garlic head, drizzle with a little olive oil, wrap in foil and roast 30 to 40 minutes until soft and golden. If using peeled cloves, toss them in a little oil and roast on a sheet for 15 to 20 minutes.

2. Toss the cauliflower florets with 2 tablespoons olive oil, a little salt and pepper and roast on a baking sheet for 20 to 25 minutes until edges brown and tender. You can do the cauliflower in the oven while the garlic roasts to save time.

3. In a large pot melt the butter over medium heat, add the diced onion, carrot and celery and cook until soft and translucent, about 7 to 8 minutes. Season with a pinch of salt to help the veggies sweat.

4. Stir in the 2 tablespoons flour and cook, stirring, 1 to 2 minutes to make a light roux. Don’t let it brown too much or the soup will taste floury.

5. Slowly whisk in the 4 cups broth, scraping up any browned bits, then add the diced potato if using. Bring to a simmer and cook until the potato is tender, about 10 to 12 minutes.

6. Add the roasted cauliflower and squeeze the soft cloves from the head into the pot, or add the roasted peeled cloves. Simmer 5 minutes to meld flavors.

7. Use an immersion blender to puree the soup until smooth but still a little textured, or work in batches in a blender. Return to low heat.

8. Stir in the milk and optional heavy cream, then add the grated sharp cheddar a little at a time, stirring until melted and smooth. Season with 1 teaspoon kosher salt, 1/2 teaspoon black pepper, and the 1/8 teaspoon nutmeg. Taste and adjust seasoning.

9. If you want a touch of heat or smokiness add a pinch of smoked paprika or cayenne. Reheat gently and don’t let it boil once the cheese is in or it might separate.

10. Serve topped with chopped chives or parsley and extra cheddar if you like. Soup will thicken as it cools so thin with a splash of milk or broth when reheating.

Equipment Needed

1. Oven (preheats to 400 F)
2. Baking sheet (for roasting cauliflower and garlic)
3. Aluminum foil (to wrap the garlic)
4. Cutting board and a sharp chef knife (for cauliflower, onion, carrot, celery)
5. Large heavy pot or Dutch oven (to cook the soup)
6. Wooden spoon or silicone spatula (to sauté and stir the roux)
7. Whisk (for adding the broth and smoothing the roux)
8. Immersion blender or regular blender (to puree the soup)
9. Measuring cups and spoons plus a box grater (for the milk, cheese and seasonings)

FAQ

Q: Can I make this soup vegetarian or vegan? A: Yes, swap the chicken broth for vegetable broth and skip the cheese and cream. For a vegan cheesy flavor try nutritional yeast or a vegan cheddar, and use olive oil instead of butter. Texture will be a bit different, but still tasty.

Q: Do I have to roast a whole head of garlic? A: No, you can use 8 to 10 peeled cloves if you like. Roasting mellows the garlic and makes it sweeter, so if you skip roasting the flavor will be sharper. If you roast, drizzle a little oil and bake at 400°F until soft, about 30 to 35 minutes.

Q: My soup is grainy or the cheese clumped. How do I fix that? A: That happens when cheese gets too hot, or you add it to boiling soup. Remove the pot from high heat, temper by stirring in a little warm milk first, then add the cheese off the heat and stir until melted. Use sharp cheddar shredded from a block, not pre-shredded, for smoother melting.

Q: Can I make this ahead and freeze it? A: Yes, cool completely then freeze in portions for up to 3 months. Reheat slowly on low, stirring often. If you used cream, texture can change a bit, so add a splash of milk while reheating and blend if needed to smooth it out.

Q: Want it thicker or thinner, what should I do? A: For thicker soup, add less broth or simmer longer to reduce. You can also add another small potato before blending. For thinner, stir in extra broth or milk until you reach the consistency you want.

Q: Any tips for extra flavor or a better texture? A: Use a mix of extra sharp cheddar and mild cheddar for depth, roast the cauliflower a bit for caramelized notes, and sweat the veg well so they release sugars. A pinch of nutmeg wakes up the cheese, and a touch of smoked paprika or cayenne gives a nice background heat.

Roasted Garlic Cheddar Cauliflower Soup Recipe Substitutions and Variations

Cauliflower: swap for broccoli florets or romanesco if you want a greener, slightly earthier soup. Broccoli cooks a bit faster so watch it so it doesn’t get mushy.
Sharp cheddar: use Gruyere or a good melting white cheddar, or smoked gouda for a smoky note. If you want milder, try Monterey Jack.
Whole milk / heavy cream: use half and half or evaporated milk for a lighter but still creamy texture. For dairy free, full fat canned coconut milk works, but it’ll add a coconut taste.
Chicken broth: swap with low sodium vegetable broth for a vegetarian version, or use water plus a bouillon cube if that’s what you have on hand. Taste and adjust salt after.

Pro Tips

1) Roast the garlic and cauliflower a little longer than you think. If the garlic isnt totally jammy, squeeze it and taste it raw; under-roasted garlic will be sharp. The cauliflower benefits from a few extra minutes to get brown bits for flavor. Just dont overcrowd the pan or they steam instead of brown.

2) Make the roux and add broth slowly. Cook the flour 90 to 120 seconds so it loses the raw taste but nothing browns, then whisk in the stock in a slow steady stream. That prevents lumps and keeps the soup silky without a floury aftertaste.

3) Add cheese off the heat and shred it yourself. Pre-shredded cheese has stabilizers and wont melt as smoothly. Keep the pot on the lowest burner and stir cheese in gradually so it melts without the soup boiling, which can make it grainy or separate.

4) Use the potato for body and control final thickness with warm liquid. If the soup gets too thick when it cools, thin with a splash of warm milk or broth rather than cold, which can shock the emulsion. Finish with a squeeze of lemon or a few drops of vinegar if it needs brightness, and season again at the end.

Roasted Garlic Cheddar Cauliflower Soup Recipe

Recipe by Nikoli Athen

0.0 from 0 votes

I made this Thick Creamy Soup with roasted garlic and sharp cheddar and I'm not kidding when it behaves like adult mac and cheese in a bowl you'll keep stealing spoons from.

Servings

servings

Calories

454

kcal

Equipment: 1. Oven (preheats to 400 F)
2. Baking sheet (for roasting cauliflower and garlic)
3. Aluminum foil (to wrap the garlic)
4. Cutting board and a sharp chef knife (for cauliflower, onion, carrot, celery)
5. Large heavy pot or Dutch oven (to cook the soup)
6. Wooden spoon or silicone spatula (to sauté and stir the roux)
7. Whisk (for adding the broth and smoothing the roux)
8. Immersion blender or regular blender (to puree the soup)
9. Measuring cups and spoons plus a box grater (for the milk, cheese and seasonings)

Ingredients

1 large head cauliflower, cut into florets (about 1.5 to 2 pounds)
1 whole head garlic for roasting (or 8 to 10 peeled cloves)
2 tablespoons olive oil, plus extra for roasting garlic
3 tablespoons unsalted butter
1 medium yellow onion, diced
1 medium carrot, peeled and diced
1 celery stalk, diced (optional but recommended)
2 tablespoons all purpose flour
4 cups low sodium chicken broth or vegetable broth
1 cup whole milk
1/2 cup heavy cream (optional for extra richness)
2 to 2 1/2 cups sharp cheddar cheese, grated, packed
1 medium russet potato, peeled and diced (for extra body, optional)
1 teaspoon kosher salt, plus more to taste
1/2 teaspoon freshly ground black pepper, plus more to taste
1/8 teaspoon ground nutmeg (optional)
Chopped chives or parsley for garnish
Pinch of smoked paprika or cayenne for a little heat, optional

Directions

Preheat oven to 400 F. Slice the top off the garlic head, drizzle with a little olive oil, wrap in foil and roast 30 to 40 minutes until soft and golden. If using peeled cloves, toss them in a little oil and roast on a sheet for 15 to 20 minutes.
Toss the cauliflower florets with 2 tablespoons olive oil, a little salt and pepper and roast on a baking sheet for 20 to 25 minutes until edges brown and tender. You can do the cauliflower in the oven while the garlic roasts to save time.
In a large pot melt the butter over medium heat, add the diced onion, carrot and celery and cook until soft and translucent, about 7 to 8 minutes. Season with a pinch of salt to help the veggies sweat.
Stir in the 2 tablespoons flour and cook, stirring, 1 to 2 minutes to make a light roux. Don’t let it brown too much or the soup will taste floury.
Slowly whisk in the 4 cups broth, scraping up any browned bits, then add the diced potato if using. Bring to a simmer and cook until the potato is tender, about 10 to 12 minutes.
Add the roasted cauliflower and squeeze the soft cloves from the head into the pot, or add the roasted peeled cloves. Simmer 5 minutes to meld flavors.
Use an immersion blender to puree the soup until smooth but still a little textured, or work in batches in a blender. Return to low heat.
Stir in the milk and optional heavy cream, then add the grated sharp cheddar a little at a time, stirring until melted and smooth. Season with 1 teaspoon kosher salt, 1/2 teaspoon black pepper, and the 1/8 teaspoon nutmeg. Taste and adjust seasoning.
If you want a touch of heat or smokiness add a pinch of smoked paprika or cayenne. Reheat gently and don’t let it boil once the cheese is in or it might separate.
Serve topped with chopped chives or parsley and extra cheddar if you like. Soup will thicken as it cools so thin with a splash of milk or broth when reheating.

Notes

Below you’ll find my best estimate of this recipe’s nutrition facts. Treat the numbers as a guide rather than a rule—great food should nourish both body and spirit. Figures are approximate, and the website owner assumes no liability for any inaccuracies in this recipe.