I'm looking for a sweet red wine..?

I don't drink much wine. But one time at Olive Garden I ordered a glass. It was the best thing I've ever had, it was really flavorful and sweet. I could only take tiny sips of it, because anymore would have been wrong. (Like wolfing down a teramisu) I've never been able to find another wine like that and I don't remember what it's called. I tried Olive Garden again, but I never could find it.