Sweet potato soup

Ingredients

• 1 tbs sliced almonds
• 3 cups chicken broth
• 1/2 cup onion
• 1/4 cup celery
• 1 clove garlic
• 1 lb sweet potatoes 1" cubed
• 1 piece cinamon stick
• 1 pinch nutmeg
• 2 tbs evaporated milk, fat free
• 1 tsp maple syrup
• 1/2 tsp. salt
• 2 tbs plain nonfat yogurt