Complex sentence: The caffè macchiato has the highest ratio of espresso to hot milk of any drink made with those ingredients, with the intent that the milk moderates, rather than obliterates, the taste of the coffee while adding a touch of sweetness.
Split into simpler sentences: The caffè macchiato has the highest ratio of espresso to hot milk of any drink made with those ingredients. The intent is that the milk moderates, rather than obliterates, the taste of the coffee while adding a touch of sweetness.