Prepare the Bread : Tear the bread into small pieces and set aside in a mixing bowl.

Cook the Onion : Finely chop the onion and sauté it in butter over medium heat until softened, about 5 minutes.

Mash the Chestnuts : Roughly chop or mash the chestnuts, leaving some small chunks for texture. Add them to the bread pieces.

Mix the Ingredients : Combine the cranberries, sautéed onion, salt, pepper, thyme, and sage with the bread and chestnuts. Mix well.

Bind the Mixture : Crack the egg into the mixture and stir thoroughly until the ingredients are well combined.

Shape the Balls : Using your hands, form the mixture into small balls, about the size of a golf ball. Place them on a lined baking tray.

Bake : Preheat your oven to 180°C (350°F). Bake the stuffing balls for 20-25 minutes or until golden and slightly crisp on the outside.

Serve and Enjoy : Let them cool slightly before serving as a flavorful side dish or appetizer.