Potato Chowder

Ingredients

• 2 qt. beef broth, homemade, canned or granular beef bouillon
• 1 lb. medium potatoes, peeled and cut into 1/2-inch cubes
• 3 leeks, both white and green part, washed and sliced thin
• 1/4 c. plain low-fat yogurt or sour cream
• 3 tomatoes, diced
• 3 bunches parsley
• 1 bay leaf
• 1 tsp. dried thyme
• salt and pepper to taste
• 2 carrots, peeled and diced