Sweet potato, apple & pancetta cream soup - Trois fois par jour

Ingredients

• 2 tablespoons of butter
• 1 onion, chopped
• 3 cups of sweet potatoes, peeled and diced
• 2 cups of apples, chopped
• Salt & pepper, as preferred
• 3 cups of chicken broth
• 1/2 cup of fresh basil, chopped
• 4 to 6 slices of pancetta