These preserved grapes make a great hostess gift! Choose grapes firmly attached to their stems. They should be plump, firm, and bright-colored.
Wash grapes; pat dry with paper towels. Place grapes in a sterilized 1-quart canning jar or glass jar with a lid. Add honey and sugar; stir gently. If using, add the stick cinnamon. Add enough brandy to cover grapes completely (about 1 cup brandy). Cover tightly. Swirl gently to mix. Store (steep) in the refrigerator for at least 2 weeks or up to 4 weeks.
To serve, spoon grapes and liquid into a dish and serve as an appetizer, paired with cheeses and crackers. (Or, serve a few grapes and the liquid in liqueur glasses. You can also chop the grapes and add to the batter for baked goods such as muffins.).
Store, covered, in the fridge up to 2 weeks. To serve, spoon grapes and liquid in into liqueur glasses.