Making the best grilled onions has never been easier! Wrap sliced Vidalia onions in a foil packet and grill until tender. Enjoy caramelized onions on top of burgers, cauliflower steaks, grilled vegetables, and so much more!
Cut a piece of heavy duty foil (or two pieces if using regular foil) approximately 22 inches long.
Place thinly sliced onion in the center of the foil and toss with onion and garlic powder, and salt and pepper. Dot the top with butter.
Pull the long edges of the foil up, folding them onto each other to create a seal. Then fold in the short edges of the foil to create the packet, making sure all edges are sealed, and leaving enough space in the foil packet for the onions to move when you shake it.
Place the foil packet on the grill over direct heat (but not a direct flame). You can also place it over indirect heat to reduce any risk of burning the onions. Cook for 25-30 minutes, shaking the foil packet halfway through. You can also gently open and stir the onions around halfway through.
Gently open the foil packet, allowing the steam to escape. Stir the onions before serving and allow to cool slightly.
1 onion is generally enough for 2 people; easily double this recipe for more servings.