Dice the onion, potato, and carrot into cubes.
Cut the broccoli into bite-sized pieces.
Drizzle olive oil into a pot and sauté minced garlic.
Add onions, potatoes, and carrots and stir-fry for 3 minutes.
Add broccoli and water and bring to a boil.
Once the ingredients are cooked, add milk and salt, then simmer a bit more.
Blend everything smoothly with a blender.
Pour the finished soup into a bowl and sprinkle with pepper.