Prepare the vegetables: Snap or cut off the woody ends of the asparagus, then cut the spears into small pieces. Peel and chop the potatoes and the onion.1 lb asparagus + 1 lb potatoes + 1 medium onion
Cook the vegetables: Melt the butter in a large pot. Add the onion, potatoes, and asparagus. Cook for about 5 minutes, stirring often so nothing sticks.2 tablespoons butter
Simmer: Add the vegetable broth, bring to a boil, then reduce the heat. Simmer on low, partially covered, for about 10 minutes or until the vegetables are soft.3 cups vegetable broth
Blend the soup: Blend with an immersion blender until smooth.
Finish: Stir in the heavy cream and adjust the taste with salt and pepper.½ cup heavy cream + fine sea salt and ground black pepper
Notes
Asparagus: You can also use white asparagus.
Broth: Chicken stock works well, too.
Cream: You can replace it with half and half or full-fat milk. The soup will be lighter, but still good. If you use milk, you can also add 1-2 tablespoons of cream cheese for extra creaminess.