Cugnà

Pour the Grape must into a large, heavy-bottomed pot. Bring it to a gentle simmer over medium heat.

Skim any foam that rises to the surface of the Grape must. Continue to simmer gently, reducing the volume by about one-third, which will take approximately 45-60 minutes.

Add the diced Quince, Firm apples, and Firm pears to the simmering Grape must. Stir well to combine.