GRANDMOTHER'S RADISH LEAF SOUP

Steps:

• Cut leaves from radishes and wash well. (Reserve radishes for another use.) Melt butter in heavy large saucepan over medium heat. Add onion and sauté until tender, about 5 minutes. Add radish leaves and sauté until wilted, about 2 minutes. Add potatoes and 3 cups water. Cover and simmer until vegetables are tender, about 20 minutes.
• Puree soup in batches in blender. Return to saucepan. Mix in milk. Stir over medium heat until hot. Season soup with salt and pepper.