Heat the oil in a 1 quart saucepan over medium heat.
Add the onions, carrots, and celery. Cook for 3 minutes, stirring occasionally.
Add the garlic, salt, and red pepper flakes. Cook for 1 minute, stirring frequently.
Pour in the broth and add the potatoes. Stir and bring to a boil.Tip: Completely cover the vegetables with the broth by ½-inch. Add additional broth if necessary.
Reduce the heat to low, cover, and simmer for 20 minutes or until the potatoes are tender.
Remove from heat and puree the soup with an immersion blender, high speed blender, or food processor until smooth.
Stir in the cream. Taste and adjust the seasoning if needed.
Notes
Cream Alternatives: Milk or half and half can be used in place of cream, though the soup will be less rich.
Spice Level: Red pepper flakes add gentle heat. Omit them if you prefer a milder soup.
Vegetable Choices: Use the vegetables you enjoy, but keep the total amount the same. Always include an allium such as onion, shallot, or leek for flavor. Options like butternut squash, zucchini, cauliflower, or sweet potato work well.
Even Cooking: Cut the vegetables into similar sized pieces so they cook evenly.
Touch of Sweetness: Add a few thin slices of apple or pear if you want a lightly sweet note.
Add Protein: Stir in about half a cup of canned beans, such as cannellini beans or chickpeas, to make the soup more filling and naturally thicker.
Check Sodium: Vegetable broth varies in salt content, so choose a broth that fits your needs.