I can up with this recipe when I discovered how caloric a regular margarita is: usually in the 300-500 cal range. These are fruity, tasty, and an 8oz portion has the same calories as a glass of wine or a beer (around 150-200). NOTE: although I used nectarines for this recipe, any fresh, ripe fruit (peaches, mangoes, grapes, strawberries, kiwi) can be used - even in combination. I've used them all. Also, substitute rum for the tequila and it becomes a frozen daiquiri of sorts.