I paid $2.95 for one.
The milk chocolate ganache was overly sweet/syrupy and didn't quite hit the right milk chocolate flavor for me. It was cold but still liquid; I was expecting something thicker and closer to actual chocolate.
Nutritional Info - Starbucks S'more Tart (71g)
Calories - 310 (from Fat - 140)
Fat - 16g (Saturated Fat - 10g)
Sodium - 170mg
Carbs - 41g (Sugars - 24g)
Protein - 4g