Broccoli Cheddar Soup

Ingredients

• 4 tablespoons unsalted butter
• 1 medium yellow onion, chopped
• ½ teaspoon sea salt
• Freshly ground black pepper
• 3 garlic cloves, chopped
• ¼ cup all-purpose flour
• 2 cups whole milk or unsweetened almond milk
• 2 cups vegetable broth
• 3 cups chopped Bonipak broccoli florets
• 1 large carrot, julienned or finely chopped
• ½ teaspoon Dijon mustard
• 8 ounces shredded cheddar cheese, about 2 heaping cups
• Croutons, for serving, optional