Curried Apple and Leek Soup

Ingredients (9)

• + 1 tablespoon margarine add to pantry
• + 2 teaspoons curry powder add to pantry
• + 3 leeks, chopped add to pantry
• + ¾ cup diced potatoes add to pantry
• + 2 Granny Smith apples -- peeled, cored and chopped add to pantry
• + 3 cups vegetable broth add to pantry
• + salt and pepper to taste add to pantry
• + salt and pepper to taste add to pantry
• ✓ ¼ cup plain yogurt