Sous Vide Cream of Celery Soup

Ingredients

• 4 cups diced celery
• 1 cup peeled and diced Russet potatoes
• 1 cup diced leeks
• 1 cup chicken stock
• 1 cup heavy cream
• 2 tablespoons butter
• 2 teaspoons kosher salt
• 1 teaspoon ground white pepper
• 1 bay leaf