Simple Roasted Cauliflower Soup
A velvety, comforting soup built on deeply roasted cauliflower and aromatics. The roasting brings out a natural nutty sweetness in the florets, while a quick blend with a touch of milk creates a silky texture without heavy cream. Perfect as a cozy starter or light meal.
For 4 servings
- prep
Preheat the oven and prep the vegetables.
1.Preheat the oven to 425°F (220°C).2.Cut the cauliflower into medium florets.3.Roughly chop the onion and peel the garlic cloves. - roast · ~30 min
Roast the cauliflower, onion, and garlic.
1.Spread cauliflower florets, chopped onion, and garlic cloves on a baking sheet.2.Drizzle with olive oil and season with 1 pinch of salt and 1 pinch of black pepper.3.Toss to coat evenly.4.Roast for 25-30 minutes, tossing halfway, until the cauliflower is tender and the edges are deeply golden brown.TIPDon't crowd the pan — the vegetables need space to caramelize rather than steam. - simmer · ~10 min
Simmer the roasted vegetables with water.
1.Transfer the roasted vegetables to a large pot.2.Pour in 3 cups of water.3.Bring to a boil over high heat, then reduce the heat to low and simmer for 10 minutes to blend the flavors. - mix · ~2 min
Blend the soup until smooth.
1.Remove the pot from heat.2.Carefully transfer the mixture to a blender (or use an immersion blender directly in the pot).3.Add the milk and the remaining 0.25 tsp salt.4.Blend until completely smooth and velvety.TIPWhen using a stand blender, vent the lid slightly and cover with a towel to allow steam to escape safely. - simmer · ~3 min
Warm through and adjust consistency.
1.Return the blended soup to the pot and place over low heat.2.If the soup is too thick, stir in a splash of water until the desired consistency is reached.3.Warm through for 2-3 minutes, but do not let it boil. - serve
Ladle into bowls and garnish.
1.Ladle the soup into serving bowls.2.Finish with a pinch of freshly cracked black pepper and a sprinkle of chopped chives.
What to keep in mind.
6 tips from the recipe — small details that make a real difference to the final dish.
- 1Spread vegetables in a single layer on the baking sheet; crowding traps steam and prevents caramelization.
- 2Roast until the cauliflower edges are deeply golden brown and slightly charred for maximum nutty sweetness.
- 3Use room-temperature milk when blending to prevent the soup from cooling down or curdling.
- 4For an extra-silky texture, pass the blended soup through a fine-mesh strainer before reheating.
- 5Make ahead: refrigerate the blended soup for up to 3 days; reheat gently over low heat, adding a splash of water if needed.
- 6To store leftovers, cool completely, then keep in an airtight container in the fridge for up to 4 days or freeze for up to 2 months.
Adapt it for your goals.
Vegan
Replace the whole milk with an equal amount of unsweetened oat milk or full-fat coconut milk for a creamy, dairy-free version that still feels indulgent.
spicySpicy
Add 1/2 teaspoon of smoked paprika and a pinch of cayenne pepper to the vegetables before roasting for a warm, smoky heat that complements the sweet cauliflower.
cheesyCheesy
Stir in 1/4 cup of grated sharp cheddar or Parmesan after blending, off the heat, until melted for a richer, more savory soup.
herb loverHerb-lover
Swap the chives for fresh thyme or rosemary sprigs added to the pot during the simmering step, then remove before blending for a fragrant, earthy note.
Why this is on our healthy list.
Rich in Vitamin C
Cauliflower is an excellent source of immune-supporting vitamin C, and roasting helps preserve a good portion of it while enhancing flavor.
Low in Calories and Fat
This soup uses just 2 tablespoons of olive oil and half a cup of whole milk, making it a light yet satisfying meal without heavy cream or butter.
High in Dietary Fiber
Cauliflower and onion provide a good amount of fiber, which aids digestion and helps keep you fuller longer.
Naturally Gluten-Free
All ingredients in this recipe are naturally free of gluten, making it a safe and comforting option for those with gluten sensitivities.
Frequently asked questions
Frozen cauliflower will work, but it releases more water and won't caramelize as deeply. Roast it a little longer and drain any excess liquid before simmering.
