https://www.themediterraneandish.com/stuffed-grape-leaves-dolmades/
Can I use Fresh Grape Leaves to make Dolmas?
If you're lucky enough to find fresh grape vine leaves, by all means, you should use them to make these dolmas. To use them in this recipe, first be sure to wash them well, then blanch them in boiling hot water. Remove from water using a slotted spoon and place them in a colander to fully cool and drain. From there, you can use them as indicated in the recipe.