Start by preheating your air fryer to a temperature of around 350°F (175°C). Preheating ensures that the grapes cook evenly and efficiently.
Rinse the grapes thoroughly under cold water and pat them dry with a clean kitchen towel. It's important to remove any excess moisture to prevent splattering in the air fryer.
Place the grapes in a bowl and add a light drizzle of olive oil, if desired. Toss the grapes gently to coat them evenly. You can also sprinkle a pinch of salt or sugar over the grapes at this stage if you want to enhance the flavor.
Place the prepared grapes in a single layer in the air fryer basket or tray. Ensure that they are not crowded to allow for proper air circulation. If needed, you can air fry them in batches.
Set the air fryer timer for approximately 5-7 minutes. Keep a close eye on the grapes as they cook. They will start to blister and develop a slightly caramelized appearance. The exact cooking time may vary depending on your air fryer model and the size of the grapes, so monitor them closely.
Once the grapes are done, remove them from the air fryer. They should be slightly crispy on the outside and juicy on the inside. Allow them to cool for a minute or two before serving.
Air-fried grapes can be enjoyed immediately as a snack or used creatively in various dishes. They make a delightful garnish for salads, desserts, cheese platters, or even as a topping for yogurt or ice cream.