Gather ingredients.
Cut the leek length wise in half.
Then slice in ¼ inch pieces and rinse well under cold water.
Heat the sauce pan, add olive oil, onions, celery, leeks and garlic and sauté until translucent.
Deglaze with white wine and cook for 2 minutes until alcohol burns off.
Add the potato water and vegetable bouillon. Cook for 15-20 minutes till potato and vegetable soften.
Puree all the vegetables with a hand blender until they are dissolve.
Add the heavy cream, roux (See our How to for instructions) and continue to blend until mixture combines.
Cook for an additional 5-8 minutes until the soup thickens to your desired consistency.
Let the soup rest for 5 minutes before serving.
Top with pita croutons and fresh herbs.