This is an incredibly easy recipe, it's so easy to make that I even hesitate to call it a recipe, but I think it is something great to share because it isn't a usual snack or drink.
I saw several other examples online, but none of them specified the proportions, I just used enough grapes that I knew 3 people would eat, and used enough wine to cover them, and enough sugar to roll them.
-sweet white wine
I used a toothpick to poke holes in the grapes, then put them in a tupperware with enough wine to cover them. I let the grapes soak in the wine overnight. The next day, I put sugar on a plate and rolled the soaked grapes, and then added a little more sugar to the top when they were all in a bowl.