Creamy Romanesco Soup Recipe

Ingredients

• 2 tablespoons olive oil
• 1 onion, coarsely chopped
• 2-3 garlic cloves, finely minced
• ½ teaspoon celery seeds
• 1 ¼ teaspoon sea salt, plus more to taste
• 1/8 teaspoon fresh pepper, plus more to taste
• 1 ½ -2 heads romanesco, coarsely chopped romanesco
• 4 cups (32 fluid ounces) vegetable broth
• ¼ -½ cup plain yogurt or sour cream
• 2 green onions, finely chopped
• 1 tablespoon parsley, finely minced