Making the most effective grilled onions has by no means been simpler! Wrap sliced Vidalia onions in a foil packet and grill till tender. Get pleasure from caramelized onions on prime of burgers, cauliflower steaks, grilled greens, and a lot extra!

When it’s too sizzling outdoors (okay, or mainly all summer time lengthy), if I’m making dinner, I’m grilling. It’s straightforward, doesn’t make an enormous mess in my kitchen, and truthfully requires nearly zero dishes which I’m all the time down for. Particularly as a result of meaning I can take pleasure in a cocktail on the patio just a bit bit longer that means…
Reading: How to grill onions in foil
So it’s no shock that I’ve mainly discovered a strategy to make no matter we’re craving on the grill, together with caramelized onions. Give me a chunk of foil and I’ll flip absolutely anything right into a foil packet able to grill!
Whereas grilling a foil packet of sliced onions doesn’t fairly get the identical golden brown coloration that caramelizing them on the range does – except you cook dinner them over the flame (extra on that later), the result’s tender, melt-in-your-mouth, deeply flavored onions which can be good on absolutely anything.
Table of Contents
Substances You’ll Want for Grilled Onions
Are you prepared for this tremendous easy ingredient listing?! Right here’s what you’ll want:

- Vidalia Onions: these candy onions are good for caramelizing on the grill. Be at liberty to swap for one more sort of yellow or candy onion if wanted.
- Butter: just a bit bit so as to add a silky end. If you wish to make these vegan, be at liberty to substitute olive oil.
- Garlic and Onion Powder: to spice up the onion taste. I’ve additionally made it with out, and whereas nonetheless scrumptious, we love the additional taste.
- Salt and Pepper: add to your most well-liked style. Don’t skip the salt as it’ll carry out the flavour of the onions!
How to Make a Foil Packet
As talked about, foil packets are my go-to for something that must be grilled however can’t simply properly match on prime of these grill grates. And it’s really easy to do.
I extremely advocate utilizing heavy-duty aluminum foil. Common foil is inclined to ripping; if it’s all you will have, you should definitely use two layers of it to forestall any holes.
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Begin by tearing a chunk of foil that’s giant sufficient to wrap up over the produce. I wish to have a chunk that’s about 22 inches lengthy.
Then, to arrange the onions, thinly slice them by slicing the onion in half and eradicating the outer layer. Place the onion half lower aspect down, then thinly slice throughout the onion. Ensure your knife is sharp, and that you’re utilizing the “claw” technique, putting your fingertips up and down on the onion.

Slice the onions as evenly as attainable to make sure even cooking. The thinner they’re, the sooner they may cook dinner and the extra caramelized they may get.
Place the sliced onions on prime of the foil, then toss with garlic and onion powder, and salt and pepper. Dot with the butter.

Fold up the lengthy edges of the foil. I pull the edges up, aligning them collectively, after which fold them over one another to create a seal. As soon as the highest is folded over itself, then fold within the sides to create the complete foil packet. We’re sealing all edges to maintain the steam inside.

Attempt to go away house within the foil packet across the onions. In different phrases, don’t press down on the foil itself. Leaving room inside will assist us afterward after we’re able to shake it up.
How to Grill Onions
Now for the simple half, as a result of it’s just about hands-off from this level on!
Also read: Cooking a pork roast in a ninja foodi grill
Warmth the grill to medium-high warmth, round 450°F. If the grill is hotter, that’s okay too, as it’s going to fluctuate considerably relying on what else you’re grilling. Place the foil packet on the grill over direct warmth for a extra caramelized outcome, and oblique to forestall any deep caramelization and to scale back any burning danger.

Let the onions cook dinner away for about 25-Half-hour, shaking the packet about midway by the cooking time. In case you’d quite, it’s also possible to rigorously open the packet and stir the onions midway by the cooking time as properly.
As soon as the onions are prepared, once more, very rigorously open the foil packet and permit the steam to flee.
Stir the onions to ensure all of the flavors are mixed, then function desired! That’s it, actually such a simple aspect dish or condiment to your favourite grilled meals!

Methods to Use Grilled Onion Slices
The great thing about grilling onions in a foil packet is the countless methods to make use of them (along with their deliciousness, in fact!). Listed below are a couple of of our favourite methods to take pleasure in them:
- On prime of burgers (meat or veggie!)
- Alongside roasted greens
- Paired with grilled steak or cauliflower steak
- On prime of a flatbread pizza (like on this breakfast pizza!)
And if you happen to’re in search of extra foil packet recipes, why not give this Rosemary Salmon in a foil packet a attempt, or these Potato and Corn Hobo Packets. Throw all of it collectively and also you’ve bought your self one straightforward dinner, dishes free!
Take a look at this Grilled Bitter Cream and Onion Dip if you happen to’re in search of a complete grilled onion recipe!
Read more: How to roast vegetables in aluminum foil
