Low-Carb Cream of Roasted Asparagus Soup Recipe

This Low-Carb Cream of Roasted Asparagus Soup recipe makes a flavorful creamy way to welcome spring and early summer. This recipe can be part of a low-carb, keto, diabetic, Atkins, gluten-free, grain-free, or Banting diet. Instructions include an easy photo tutorial.

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The Inspiration

I don’t know if all of you are on Instagram, but last week @hautecuisines were celebrating asparagus. They shared gorgeous photos of fresh cut asparagus, asparagus tarts, and loads of asparagus soup. After looking at all of those mouthwatering photos, it made me hungry for–you guessed it–asparagus soup. 

By the way, if you’re on Instagram and want to be in the know about what’s going on in our kitchen (including some surprise visits from my farm critters and house critters on my Instagram stories), follow us!

The Recipe

I wanted my recipe for asparagus soup to be something special. Something that set it apart from the massive collection of soups on we see on the internet. I wanted this soup to really shine.

In order to make it super special, I decided to combine it with green onions. To me, both green onions and asparagus are synonymous with spring. The flavors work together remarkably well. It’s almost like they were meant to be together.

I took this marriage of green onions and asparagus and roasted it. Roasting it adds in some caramelized goodness as well as a soft, toasted flavor. Roasting the vegetables makes the kind of soup that will stick in your memory for years to come. 

Along with the roasted vegetables, I use a bit of garlic, some wine, bone broth, and cream for the soup base. I add in just a hint of red pepper flakes to add interest without making it hot.

This soup makes a perfect starter or can be used as a main dish. It would be perfect for a spring or summer brunch. Enjoy!

-Annissa

5 from 6 votes

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Low-Carb Cream of Roasted Asparagus Soup

This Low-Carb Cream of Roasted Asparagus Soup recipe makes a flavorful creamy way to welcome spring and early summer. This recipe can be part of a low-carb, keto, diabetic, Atkins, gluten-free, grain-free, or Banting diet

Course Soup

Cuisine American, low-carb

Prep Time 10 minutes

Cook Time 20 minutes

Total Time 30 minutes

Servings 4

Calories 311 kcal

Author Annissa Slusher

Ingredients

For the roasted vegetables:

• 12 ounces asparagus spears
• 2 ounces green onions (about 4 onions)
• 1 tablespoon ghee or butter melted
• sea salt
• black pepper freshly ground

For the soup base:

• 1 tablespoon butter
• 3 large cloves garlic crushed
• 1/2 cup dry white wine
• 4 cups chicken bone broth or stock (vegetables stock works fine)
• 1 cup heavy whipping cream
• 1/16 teaspoon dry red chile pepper flakes
• sea salt
• black pepper freshly ground

Instructions

For the roasted vegetables:

1. Preheat oven to 375º Fahrenheit. Place asparagus and green onions on a baking sheet. Drizzle melted ghee over top. Rub the ghee or butter all over the vegetables to coat. Sprinkle lightly with sea salt and pepper. 

   

2. Roast asparagus and green onions in the preheated oven for 15 minutes. Remove from the oven, turn the vegetables and roast 5 minutes longer. Remove from the tray and cut into large chunks. Be sure to keep some of the tops set aside to use as garnish later.

   

For the soup base:

1. Meanwhile, heat a heavy medium saucepan or dutch oven over medium high heat. Add butter. When butter has melted and has stopped foaming, stir in the crushed garlic. Cook garlic, stirring frequently, until fragrant, about 30 seconds to a minute.

   

2. Stir in the wine. Turn heat to high. Bring wine to a simmer, stirring occasionally to bring up any browned bits on the bottom of the pan. Simmer wine until much of the wine has evaporated and the mixture has thickened slightly. Stir in  the broth. Remove from heat.

   

3. Transfer the roasted asparagus (reserving a few tops for garnish, if desired) and green onions into the broth mixture. Using a blender or an immersion blender, blend soup until liquified. Transfer back to the dutch oven if using a blender. 

   

4. Over medium high heat, bring heat back to a simmer. Stir in cream and red chili flakes. Bring soup back to a simmer. Simmer until thick enough to coat the back of a spoon. 

   

5. Season to taste with sea salt and black pepper. The amount will vary depending on the type of broth used and personal preference. I used an unsalted broth and added in about 1/2 teaspoon sea salt and 1/4 teaspoon black pepper. Serve warm, garnished with the reserved asparagus tips.

Recipe Notes

Serving size: 1/4th of the recipe or about 1 1/4 cup.

Net Carbs (g): 5

Nutrition Facts

Low-Carb Cream of Roasted Asparagus Soup

Amount Per Serving

Calories 311 Calories from Fat 252

% Daily Value*

Total Fat 28g 43%

Saturated Fat 17g 85%

Polyunsaturated Fat 1g

Monounsaturated Fat 8g

Cholesterol 97mg 32%

Potassium 198mg 6%

Total Carbohydrates 6g 2%

Dietary Fiber 1g 4%

Sugars 3g

Protein 5g 10%

Vitamin A 29%

Vitamin C 8%

Calcium 6%

Iron 7%

* Percent Daily Values are based on a 2000 calorie diet.

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