Alexa's shopping list definitely has room for improvement if it wants to be more natural. If I want to add bread and peanut butter to my shopping list, I need to say "Alexa, add peanut butter to my shopping list <pause> Alexa, add bread to my shopping list". If I say "Alexa, add bread and peanut butter to my shopping list", it adds a single item called "bread and peanut butter"