Curried Sweet Potato And Apple Soup

Ingredients

• 1 pound sweet potatoes
• 8 ounce tart apples
• 1 tablespoon olive oil
• 1 large onion, coarsely chopped
• 2-3 tablespoon curry powder
• 1 3/4 cup vegetable broth
• 1 3/4 cup unsweetened apple juice
• 3/4 teaspoon salt
• 6 ounce plain, low-fat yogurt
• 3/4 cup croutons, optional

Directions

1. Pierce sweet potatoes and apples with fork tines. Microwave sweet potatoes and apple on high until apple is very tender, about 6 to 7 minutes. Remove apple; set aside until cool enough to handle. Continue microwaving sweet potatoes on high until tender, about 4 to 5 minutes longer; set aside until cool enough to handle.
2. Meanwhile, in large saucepan over medium heat, heat oil; add onion and curry powder; cook and stir until onion begins to brown, about 5 minutes. Add broth; bring to a boil, reduce heat to low; simmer 5 minutes. Transfer broth mixture to bowl of food processor; reserve saucepan. Halve sweet potatoes and apple; remove apple core; scoop potato and apple pulp from skin; add to processor. Add salt; whirl until very smooth, gradually adding apple juice through processor feed tube. Transfer mixture to reserved saucepan; bring to boil over medium heat. Whisk in yogurt; reheat just until hot; do not boil. Serve topped with croutons, if desired.