01 - Heat olive oil in a large saucepan over medium heat. Add the chopped onion and minced garlic, sautéing until softened and fragrant, approximately 3 minutes.
02 - Add the diced potato and broccoli florets to the saucepan, stirring to coat evenly with oil. Continue cooking for 2 minutes.
03 - Pour in the vegetable broth and bring to a boil. Reduce heat, cover, and simmer for 15–18 minutes until all vegetables are fork-tender.
04 - Remove from heat. Using an immersion blender or working in batches with a countertop blender, purée the soup until completely smooth and velvety.
05 - Stir in the cream and nutmeg if using. Warm gently over low heat but do not allow to boil.
06 - Adjust seasoning with salt and pepper to taste. Ladle into bowls and garnish with reserved broccoli florets or a delicate swirl of cream.