Sweet Potato Fingers

Ingredients

• 3 tbsp (45 ml) olive oil
• 1 tsp (5 ml) chili powder
• 1 tsp (5 ml) brown sugar
• 1/4 tsp (1 ml) salt
• 1 pinch ground cinnamon
• 1 pinch cayenne pepper
• 1 1/2 lb (675 g) sweet potatoes, peeled and cut into 1/2-inch (1 cm) thick matchsticks
• Plain yogurt (optional)