Cold Curried Mango Soup

Ingredients

• 2 tsp olive oil
• 1 small onion, diced
• 2 tsp curry powder
• 3 large mangoes, peeled
• 1 tbsp light brown sugar
• 1/2 tsp ground ginger
• 1/2 tsp salt
• 1/4 tsp allspice
• 1-1/4 cups plain fat-free yogurt
• 2 tbsp fresh lime juice
• 2 tbsp minced fresh basil