Creamy French Cauliflower Soup with Brie

Ingredients you’ll need

• Cauliflower: One large head (about 2 pounds) or two small heads, trimmed into small florets. Choose firm, blemish-free heads.
• Water: Use just enough to barely cover the cauliflower. Cooking the cauliflower in water produces a light, flavorful broth that highlights the vegetable.
• Shallot: One small shallot, finely chopped. Shallots are mild and suit the delicate cauliflower flavor; a small yellow onion can be substituted if needed.
• Dijon mustard: A teaspoon brings gentle tang and umami to the soup.
• Fresh thyme and bay leaves: Aromatics to deepen the flavor without overpowering the cauliflower.
• Unsalted butter: For sautéing the shallot and building a silky mouthfeel.
• Half-and-half: About 3/4 cup to finish the soup for a creamy but not heavy texture. Substitute part heavy cream if you prefer a richer result.
• French brie: Roughly 6 ounces, at room temperature and sliced for topping. Choose a higher-fat French brie for the best melt and flavor.
• Kosher salt and black pepper: For seasoning to taste.

Exact ingredient measurements are listed in the recipe section below.

Step 1: Prep the brie, cauliflower and shallots

Remove the brie from the refrigerator so it warms to room temperature while you cook. Finely chop the shallot and cut the cauliflower into small, evenly sized florets so they cook quickly and blend smoothly.

Melt the butter in a large lidded pot over medium heat. Add the shallot and sauté until fragrant and translucent, about 4–5 minutes. Stir in the Dijon mustard and combine.

Step 2: Make the soup base and simmer

Add the cauliflower, 1 teaspoon salt, thyme sprigs, and bay leaves to the pot. Pour in just enough water to barely cover the cauliflower — too much water dilutes the flavor. Nestle the herbs so you can easily remove them before blending.

Cover and bring to a boil, then reduce to a gentle simmer. Cook 12–15 minutes, until the cauliflower pierces easily with a fork.

Step 3: Blend the soup

Remove the thyme sprigs and bay leaves. Purée the soup until completely smooth using an immersion blender or in batches in a countertop blender (be cautious with hot liquids). If the soup seems too thick, add a splash of the reserved cooking water or a little additional water to reach the desired consistency before adding the half-and-half.

Step 4: Stir in half-and-half and top with brie

Return the puréed soup to low-medium heat. Stir in the half-and-half and adjust salt to taste. Warm the soup gently until piping hot — avoid boiling to preserve the cream’s texture.

Ladle into bowls and top each serving with a couple of slices of room-temperature French brie. Finish with freshly ground black pepper and serve with crusty bread for dipping.

Expert tips

• Blend carefully: An immersion blender is convenient for hot soups because you can purée right in the pot. If using a countertop blender, work in small batches and vent the lid slightly to let steam escape.
• Keep liquids minimal while cooking: Use only enough water to barely cover the cauliflower so the finished soup stays thick enough to carry a slice of brie on top.
• Use good French brie: A higher-fat French brie melts more smoothly and offers the proper richness; American-style brie can behave differently when melted.
• Remove whole herbs before blending: Tuck thyme sprigs and bay leaves where you can easily retrieve them to avoid stray leaves in the purée.

Highlight the cauliflower itself by using light aromatics (shallot, thyme, bay leaf) and cooking the florets in a small amount of water so the cooking liquid becomes a clean, cauliflower-forward broth.

Blend the cooked cauliflower until very smooth and use minimal cooking liquid. The vegetable itself will provide body; the addition of half-and-half gives a creamy finish without needing a roux or starch.

Yes — freeze the soup before adding the brie. Store in an airtight container for up to one month. Thaw in the refrigerator and reheat gently on the stove, then add fresh brie when serving.