One of the key differences is that Champagne comes from the Champagne region of France while Prosecco comes from the Veneto region of Italy. The flavor profiles are also different in that Champagne has a more yeasty taste with notes of citrus, almonds, and toast. Prosecco is made from Glera grapes and tastes more like honeydew, pear, and apples. Champagne is generally priced higher, but one bottle should make at least 3 batches of these strawberry preserves which is worth the price in our book. Especially since they last so long.