Who said you need to buy sweetened yogurt when you can make your own, even better, Banana Walnut Parfait? Flavored yogurt tends to have as much as 25 g of sugar PER SERVING.Don’t believe me? Check out Yogurt With More Sugar Than a Twinkie via Huffington Post. A delicious snack, light breakfast or dessert, this parfait has less added sugar using plain Greek yogurt as a base, adding only a pinch of agave nectar and plays off of the banana’s natural sweetness.