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Overhead shot showing two bowls of broccoli cheddar soup on a white countertop, next to a spoon and black striped linen napkin.
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Gluten Free Broccoli Cheddar Soup

This gluten-free broccoli cheddar soup is creamy, cheesy, and made in one pot. A simple gluten-free roux gives it a smooth, velvety texture with no grit. Ready in just 40 minutes.
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Prep Time 10 minutes
Cook Time 30 minutes
Total Time 40 minutes
Servings 6 servings
Metric - US Customary

Ingredients

  • ¼ cup (57 g) unsalted butter
  • 1 cup (120 g) yellow onion - diced (from about ½ large onion)
  • 2 cloves garlic - minced
  • ¼ cup (35 g) gluten-free flour blend - I used Bob's Red Mill 1-to-1 Gluten-Free Flour Blend (in the blue bag)
  • 2 cups (470 g) gluten-free chicken broth - or vegetable broth for vegetarian option
  • 2 cups (488 g) whole milk
  • 4 cups (225 g) broccoli florets - chopped into small pieces
  • 1 cup (100 g) carrots - julienned or shredded
  • 2 teaspoons Dijon mustard
  • 1 teaspoon kosher salt
  • ½ teaspoon garlic powder
  • ¼ teaspoon paprika
  • ¼ teaspoon ground black pepper
  • 2 cups (226 g) sharp cheddar cheese - shredded (8 oz)

**Use the toggle button above to turn the instruction photos on and off!

Instructions

  • Sauté the Onion: In a large pot or Dutch oven over medium heat, melt ¼ cup (57 g) unsalted butter. Add diced 1 cup (120 g) yellow onion and cook for about 3-4 minutes, stirring occasionally, until soft and translucent.
    Sautéed diced onions sizzling in melted butter at the bottom of a white Dutch oven, starting the base of a broccoli cheddar soup.
  • Add Garlic: Stir in 2 cloves garlic and cook for 30 seconds to 1 minute, until fragrant.
    Sautéed diced onions sizzling in melted butter at the bottom of a white Dutch oven, starting the base of a broccoli cheddar soup.
  • Make the Roux: Sprinkle ¼ cup (35 g) gluten-free flour blend over the onions and garlic. Stir continuously for 1-2 minutes, letting the flour cook and lightly brown to form a roux.
    Gluten-free flour added to sautéed onions, forming the start of a roux for creamy broccoli cheddar soup.
  • Add Broth and Milk: Slowly whisk in 2 cups (470 g) gluten-free chicken brotha little at a time to prevent lumps, followed by 2 cups (488 g) whole milk. Continue whisking until the mixture is smooth and combined.
    Whisking broth into the roux to create a smooth, golden soup base in a white Dutch oven.
  • Add Vegetables and Seasonings: Stir in the chopped 4 cups (225 g) broccoli florets, 1 cup (100 g) carrots, 2 teaspoons Dijon mustard, 1 teaspoon kosher salt, ½ teaspoon garlic powder, ¼ teaspoon paprika, and ¼ teaspoon ground black pepper. Bring to a gentle simmer.
    Broccoli florets and julienned carrots added to the creamy soup base before simmering.
  • Simmer: Simmer uncovered for 10-15 minutes, stirring occasionally, until the broccoli is tender but still bright green.
    Simmered soup with visible broccoli and carrots in a creamy broth just before adding cheese.
  • Add Cheese: Turn off the heat. Gradually stir in 2 cups (226 g) sharp cheddar cheese by the handful, allowing it to fully melt before adding more. Taste and adjust salt or seasonings if needed.
    Pot of gluten-free broccoli cheddar soup, smooth and creamy with visible broccoli and carrot pieces.

Notes

  • Flour: I tested this with Bob's Red Mill 1-to-1 and King Arthur Measure for Measure.
  • Cheese: Shred from a block for the smoothest melt. Pre-shredded cheese has anti-caking agents that can make the soup gritty.
  • Broth: Check the label. Not all chicken broth is gluten-free. Use vegetable broth for a vegetarian version.
  • Storage: Refrigerate in an airtight container for up to 3 days. Reheat gently on the stovetop with a splash of milk or broth. Do not freeze.

Nutrition

Calories: 343kcal | Carbohydrates: 19g | Protein: 16g | Fat: 24g | Saturated Fat: 14g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 6g | Trans Fat: 0.3g | Cholesterol: 68mg | Sodium: 744mg | Potassium: 532mg | Fiber: 3g | Sugar: 8g | Vitamin A: 4731IU | Vitamin C: 58mg | Calcium: 421mg | Iron: 1mg
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