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Roasted Asparagus Soup

An image of prepared Roasted Asparagus Soup made with asparagus, sweet onion, garlic, Swanson® Vegetable Broth and cream.
  • prep time: 15 min
  • total time: 35 min
  • serves: 6 people

Creamy, yet fresh and light, this soup takes full advantage of the abundance of springtime asparagus.  Roasting the asparagus brings out its sweetness and gives the soup a subtle smoky note while a touch of cream adds richness.   An immersion blender is a great tool for blending vegetable soups.  If you don’t have one, a traditional blender or food processor will get the job done.  


  • 2 pounds asparagus spears, trimmed
  • 3 tablespoons olive oil
  • 1 large sweet onion, coarsely chopped (about 1 cup)
  • 3 cloves garlic, minced
  • 3 tablespoons all purpose flour
  • 6 cups Swanson® Vegetable Broth
  • 1/2 cup heavy cream


  • Tips

    • Serving Suggestion: This creamy soup is great served topped with crunchy croutons.
  • Step 1

    Heat the oven to 425°F.  Place the asparagus on a rimmed baking sheet and drizzle with 1 tablespoon oil.

  • Step 2

    Roast the asparagus for 10 minutes or until tender.  Let cool.  Cut into 1-inch pieces.

  • Step 3

    While the asparagus is roasting, heat the remaining oil in a 4-quart saucepot over medium heat.  Add the onion and garlic and cook for 5 minutes or until the onion is tender, stirring occasionally.

  • Step 4

    Reduce the heat to low. Add the flour to the onion mixture. Cook for 5 minutes, stirring often. Gradually stir in the broth. Heat to a boil.  Cover and cook for 10 minutes.

  • Step 5

    Add the asparagus to the saucepan.  Using an immersion blender, blend until the mixture is smooth.  Add the heavy cream and blend until combined.  Season to taste.

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Made With

Calories 195
Total Fat 14 g
Sat. Fat 5.5 g
Trans Fat 0 g
Cholesterol 27 mg
Sodium 812 mg
Total Carb 12 g
Dietary Fiber 3 g
Sugar 5 g
Protein 4 g
Vitamin D 1 %DV
Calcium 5 %DV
Iron 19 %DV
Potassium 8 %DV

This nutritional information refers to each serving of the entire recipe and not just the products used as ingredients.