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Creamy Roasted Cashew & Sweet Potato Velouté with Fresh Cashew Butter

Experience a velvety smooth and richly flavored sweet potato velouté, elevated by the exquisite creaminess of freshly made cashew butter. This recipe ensures a luxuriously smooth soup, perfect as a comforting main or elegant appetizer.
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Prep Time 20 minutes
Cook Time 45 minutes
Total Time 1 hour 5 minutes
Servings: 6 servings
Course: Main Course
Cuisine: Contemporary, Vegan
Calories: 350
Ingredients Equipment Method Notes

Ingredients
  

For the Roasted Vegetables
  • 2 lbs Sweet Potatoes peeled and cubed (about 1-inch pieces)
  • 1 medium Yellow Onion roughly chopped
  • 4 cloves Garlic peeled
  • 2 tbsp Olive Oil
  • 1/2 tsp Salt
  • 1/4 tsp Black Pepper
For the Creamy Cashew Butter
  • 1 cup Raw Cashews unsalted, preferably roasted lightly for more flavor
  • 1-2 tbsp Neutral Oil such as avocado or sunflower oil (optional, for ultra-smoothness)
  • 1/4 tsp Fine Sea Salt or to taste
For the Soup Base & Seasoning
  • 4 cups Vegetable Broth low sodium
  • 1/2 cup Full-Fat Coconut Milk canned, shaken well
  • 1 tsp Ground Cumin
  • 1/2 tsp Ground Ginger
  • 1/4 tsp Turmeric Powder (optional, for color and warmth)
  • 2 tbsp Fresh Lime Juice (or lemon juice)
For Garnish
  • 1/4 cup Roasted Cashews roughly chopped
  • 2 tbsp Fresh Cilantro chopped

Equipment

  • High-speed blender
  • Large stockpot
  • Baking Sheet
  • Parchment paper (optional)

Method
 

Prepare and Roast Vegetables
  1. Preheat your oven to 400°F (200°C). Line a large baking sheet with parchment paper for easier cleanup, if desired.
  2. In a large bowl, combine the cubed sweet potatoes, chopped onion, and peeled garlic cloves. Drizzle with 2 tablespoons of olive oil, 1/2 teaspoon of salt, and 1/4 teaspoon of black pepper. Toss well to ensure all vegetables are evenly coated.
  3. Spread the seasoned vegetables in a single layer on the prepared baking sheet. Roast for 25-30 minutes, or until the sweet potatoes are tender and slightly caramelized, and the garlic is fragrant and softened. Stir halfway through to ensure even roasting. Remove from oven and set aside.
Make Creamy Cashew Butter (Crucial for Smoothness)
  1. While the vegetables are roasting, prepare your cashew butter. Place the 1 cup of raw cashews (lightly roasted for 5-7 minutes at 350°F / 175°C if desired, then cooled slightly) into a high-speed blender or food processor.
  2. Blend the cashews on high. Initially, they will turn into a coarse meal, then a sticky paste. Continue blending, scraping down the sides as needed. The natural oils will release, and it will start to become smooth. This can take 5-10 minutes, depending on your blender's power.
  3. To achieve a truly creamy, smooth consistency and prevent stiffness, add 1-2 tablespoons of neutral oil and 1/4 teaspoon of fine sea salt. Continue blending, keeping the machine running until the mixture transforms into a luxuriously smooth, pourable cashew butter. If it seems too thick, add a tiny splash of water (1 teaspoon at a time) while blending until desired consistency is reached. This step is key for a creamy, not stiff, texture in your soup.
Assemble and Blend the Soup
  1. Carefully transfer the roasted vegetables to your high-speed blender. Add 4 cups of vegetable broth, 1 teaspoon of ground cumin, 1/2 teaspoon of ground ginger, and 1/4 teaspoon of turmeric powder (if using).
  2. Add the freshly made creamy cashew butter directly to the blender with the vegetables and broth.
  3. Secure the blender lid and blend on high until the soup is completely smooth and creamy, with no lumps remaining. This may take 2-3 minutes. If your blender has a 'soup' or 'hot liquid' setting, use it.
Simmer and Serve
  1. Pour the blended soup into a large stockpot. Stir in the 1/2 cup of full-fat coconut milk. Heat the soup over medium-low heat, stirring occasionally, until it is heated through and gently simmering. Do not boil.
  2. Remove from heat and stir in the 2 tablespoons of fresh lime juice. Taste and adjust seasoning with additional salt, pepper, or lime juice as desired.
  3. Ladle the hot soup into bowls. Garnish with chopped roasted cashews and fresh cilantro before serving immediately.

Notes

Achieving super creamy cashew butter is all about patience and a good high-speed blender. The cashews will go through several stages (crumbly, pasty, thick) before reaching a smooth, liquid state. Don't stop blending until it's pourable! If your blender struggles, give it a break to cool down every few minutes. Leftover soup can be stored in an airtight container in the refrigerator for up to 3-4 days. It may thicken upon cooling; simply thin with a splash of water or broth when reheating.