Starbucks Secret
Raspberry white chocolate mochas were my fav as well. I don't count calories (only carbs and protein) and haven't had coffee post op yet, but when I do, it'll be heavy whipping cream (instead of milk, because it has very few carbs) with coffee, sugar free white chocolate and sugar free raspberry syrup. It won't likely be identical, but it'll be a good substitute.
1g of carbs! 0 sugars. Here is the link to fitness pal nutrition facts
http://www.myfitnesspal.com/food/calories/starbucks-protein- powder-132205399