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You can grill squash on a charcoal grill by prepping it properly, heating your coals right, and cooking it directly over medium-high heat until tender.
Charcoal grilling brings out a smoky, caramelized flavor in squash that a gas grill just can’t match.
Whether you’re working with zucchini, yellow squash, butternut, or acorn squash, the process is simple once you know the basics.
In this post, we’ll walk through exactly how to grill squash on a charcoal grill, from choosing the right squash to nailing that perfect char.
Let’s fire it up.
Why Grill Squash on a Charcoal Grill?
Grilling squash on a charcoal grill is one of the best ways to cook this versatile vegetable.
Here’s why it works so well.
1. Unmatched Smoky Flavor
When you grill squash on a charcoal grill, the burning coals release aromatic smoke that infuses the flesh with a deep, earthy taste.
That smoky character is something you simply can’t replicate on a stovetop or in an oven.
2. Beautiful Caramelization
The high, dry heat of a charcoal grill sears the surface of the squash, creating those gorgeous grill marks and caramelized edges.
This caramelization adds a natural sweetness that balances the squash’s mild flavor.
3. Versatile for Any Type of Squash
You can grill squash on a charcoal grill whether you’re using delicate zucchini or dense butternut.
The method adapts easily, so you’re never limited to just one variety.
How to Grill Squash on a Charcoal Grill Step by Step
Learning how to grill squash on a charcoal grill comes down to a few key steps.
Follow these and you’ll get tender, smoky results every time.
1. Choose and Prep Your Squash
Start with firm, fresh squash.
For zucchini and yellow squash, slice them lengthwise into planks about half an inch thick.
For butternut or acorn squash, peel, seed, and cut into half-inch slices or wedges.
Brush every piece with olive oil so it doesn’t stick to the grates.
2. Season Simply
Salt and pepper are really all you need when you grill squash on a charcoal grill.
You can add garlic powder, smoked paprika, or dried herbs like thyme and rosemary for extra depth.
Keep it simple so the smoky flavor shines through.
3. Light and Arrange Your Charcoal
Fill a chimney starter with lump charcoal and light it.
Once the coals are covered in gray ash, pour them into the grill in an even layer.
For a two-zone setup, push most coals to one side so you have a hot zone and a cooler zone.
This gives you control if the squash starts to burn.
4. Preheat the Grill Grate
Put the grate on and let it heat for about five minutes.
Then scrape it clean with a wire brush and wipe it with an oiled paper towel.
A clean, hot grate is the secret to preventing sticking when you grill squash on a charcoal grill.
5. Grill Over Medium-High Heat
Place the squash slices directly over the coals.
For zucchini and yellow squash, grill about three to four minutes per side.
For denser squash like butternut, give it five to six minutes per side.
Flip once with tongs and look for tender flesh and nice char marks.
6. Move to the Cool Zone If Needed
If your squash is browning too fast, slide it to the cooler side of the grill.
Cover with the lid and let it finish cooking through indirect heat.
This is especially helpful for thicker cuts that need more time.
7. Rest and Serve
Once your squash is fork-tender, pull it off the grill.
Let it rest for a couple of minutes, then finish with a squeeze of lemon or a drizzle of balsamic glaze.
Now you know how to grill squash on a charcoal grill like a pro.
Tips for the Best Charcoal-Grilled Squash
A few extra tricks will take your grilled squash to the next level.
1. Don’t Overcook It
Squash turns mushy fast, so stay close to the grill and check it often.
You want it tender but still holding its shape.
2. Use a Grill Basket for Small Pieces
If you’re grilling cubed squash, a grill basket keeps everything from falling through the grates.
It’s a game-changer when you grill squash on a charcoal grill in smaller cuts.
3. Add Smoke with Wood Chips
Toss a handful of soaked wood chips like hickory or applewood onto the coals.
The extra smoke pairs beautifully with the natural sweetness of squash.
4. Watch Your Heat
Charcoal burns hot, so keep an eye on the coals.
If they’re flaming up, close the vents a bit to tame the fire.
So, How Do You Grill Squash on a Charcoal Grill?
You grill squash on a charcoal grill by prepping it, seasoning it simply, and cooking it over medium-high coals until tender and charred.
The smoky flavor and caramelized edges make it a standout side dish for any cookout.
Just remember to oil the grates, flip once, and pull it off before it turns mushy.
Hope this post has helped you learn how to grill squash on a charcoal grill, and that your next batch comes out perfectly smoky and delicious.