Creamy Cauliflower & Leek Potato Soup
A velvety, dairy-free soup made with roasted cauliflower and leeks, blended to a luxurious texture that mimics creamy potato soup without any dairy or grains. This mediterranean-inspired whole30 (dairy-free, vegetarian) ready in about 55 minutes pairs florets cauliflower, leeks, yellow onion for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 240 calories and feeds 4, so it slots cleanly into a weekly meal plan and pairs well with a quick salad or grain on the side. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.
Ingredients
- 3 cups florets cauliflower
- 2 leeks
- 1 yellow onion
- 2 garlic cloves
- 4 cups chicken broth
- 1 tbsp fresh thyme leaves
- 1 tsp sea salt
- 1/2 tsp black pepper
Instructions
- Step 1: Preheat oven to 400°F (200°C). Toss cauliflower florets with 1 tbsp olive oil, salt, and pepper; roast on a baking sheet for 25 minutes until golden at the edges and tender when pierced with a fork.
- Step 2: Finely chop leeks (white and light green parts only) and onion. Mince garlic. Sauté leeks and onion in 1 tbsp olive oil over medium heat for 5 minutes until softened and translucent.
- Step 3: Add minced garlic to the pot and cook for 1 minute until fragrant. Stir in roasted cauliflower, chicken broth, and thyme. Bring to a simmer and cook for 10 minutes to meld flavors.
- Step 4: Use an immersion blender to puree the soup until completely smooth (or transfer to a blender in batches), adding more broth if too thick. Season with additional salt and pepper to taste, then serve hot.
Equipment for this recipe
Top-rated tools to make this recipe successfully.
Frequently asked questions
How long does Creamy Cauliflower & Leek Potato Soup take to make?
Total time is about 55 minutes (15 min prep + 40 min cook). Most home cooks find this fits comfortably into a weeknight; double the batch on Sunday for two dinners.
How do I store leftover Creamy Cauliflower & Leek Potato Soup?
Cool to room temperature within 2 hours, then store in an airtight container in the fridge for up to 4 days. Reheat covered in a 350°F oven for 10-12 minutes, or microwave at 70% power in 60-second bursts to keep florets cauliflower from drying out.
Can I substitute ingredients in Creamy Cauliflower & Leek Potato Soup?
Yes — most ingredients in this recipe have flexible swaps. For oil, use any neutral high-smoke-point oil (avocado, grapeseed, refined coconut). For aromatics, dried herbs at ⅓ the volume of fresh work in a pinch. The full ingredient list is shoppable on Instacart so you can see substitutes in real time.
How do I scale Creamy Cauliflower & Leek Potato Soup for a different number of people?
The recipe is written for 4 servings. Multiply each ingredient by (your serving target / 4). Cook time stays roughly the same up to 2x; for 3-4x batches, switch from a skillet to a sheet pan or stockpot so the food isn't crowded — overcrowding steams instead of browns.
Is Creamy Cauliflower & Leek Potato Soup dairy-free?
Yes — this recipe is tagged dairy-free, vegetarian, gluten-free based on its ingredient list. Always cross-check labels for packaged ingredients (sauces, broths, condiments) since formulations vary by brand.
What others are saying
- ★★★★★
My whole family loved this.
- ★★★★★
Quick to prep and the results are amazing. A real keeper.
- ★★★★☆
Almost perfect — just needed a squeeze of lemon at the end.
