How To Barbecue Watermelon

You can barbecue watermelon by grilling thick slices or wedges directly on hot grates until they char and caramelize.
 
It sounds strange at first, but barbecued watermelon is one of those surprising summer treats that wins people over fast.
 
When you barbecue watermelon, the natural sugars concentrate and deepen, giving it a smoky sweetness that works for both savory and sweet dishes.
 
If you’ve been wondering how to barbecue watermelon without turning it into a mushy mess, the key is picking the right fruit and using high heat quickly.
 
In this post, we’ll walk through how to barbecue watermelon step by step, plus the best ways to season and serve it.
 
Let’s fire up the grill.
 

How to Barbecue Watermelon the Right Way

Barbecuing watermelon works best when you treat it like a hearty vegetable rather than a delicate fruit.
 
Here’s how to barbecue watermelon so it holds its shape and tastes amazing:
 

1. Choose a Firm, Ripe Watermelon

The first step in how to barbecue watermelon is starting with fruit that’s ripe but still firm.
 
An overripe watermelon will fall apart on the grill, so pick one that feels heavy and gives a deep, hollow sound when you tap it.
 
Seedless watermelons are ideal because you don’t have to worry about seeds loosening as the fruit heats up.
 
If you can, chill the watermelon in the fridge first so the slices stay sturdy when they hit the heat.
 

2. Cut Thick Slices or Wedges

When you barbecue watermelon, thickness matters more than you’d think.
 
Cut the fruit into slices about one inch thick, or leave it in half-moon wedges if you want something even sturdier.
 
Thin slices tend to collapse, but thick ones keep their structure while the outside chars.
 
You can leave the rind on too since it acts like a handle and helps the slice hold together on the grates.
 

3. Preheat the Grill to High Heat

You’ll want your grill screaming hot before the watermelon touches it.
 
A temperature around 400 to 450 degrees Fahrenheit works well for how to barbecue watermelon because the high heat caramelizes the surface fast.
 
Clean the grates and brush them with a little oil so the slices don’t stick.
 
Whether you use charcoal or gas, let the grill fully preheat for at least ten minutes.
 

4. Grill Each Side for a Few Minutes

Place the watermelon slices directly on the hot grates and let them sit undisturbed.
 
After about three to four minutes, you’ll see dark grill marks forming and the surface starting to glisten.
 
Flip once and grill the other side for another three minutes or so.
 
That’s really all it takes when you barbecue watermelon, short and hot is the whole secret.
 

Ways to Season Barbecued Watermelon

Plain grilled watermelon is delicious, but a little seasoning takes it to another level.
 
Here are some easy ways to flavor your barbecued watermelon:
 

1. Sea Salt and Lime

A pinch of flaky sea salt and a squeeze of fresh lime is the classic combo for barbecued watermelon.
 
The salt sharpens the sweetness while the lime adds a bright, tangy kick.
 
It’s simple, fresh, and lets the smoky flavor shine through.
 

2. Chili Powder and Honey

For a sweet-and-spicy twist, brush the slices with honey and dust them with chili powder before grilling.
 
The honey caramelizes into a sticky glaze, and the chili keeps things interesting.
 
This is a favorite way to barbecue watermelon for anyone who loves bold flavors.
 

3. Balsamic Glaze and Mint

Drizzle grilled watermelon with balsamic glaze and scatter fresh mint on top.
 
The tangy glaze pairs beautifully with the smoky char, and the mint adds a cool finish.
 
It looks fancy but takes almost no effort.
 

Best Ways to Serve Barbecued Watermelon

Once you know how to barbecue watermelon, you’ll find plenty of ways to use it.
 
Here are a few crowd-pleasing ideas:
 

1. In Salads

Chop your barbecued watermelon and toss it into a salad with feta, arugula, and red onion.
 
The smoky sweetness balances the salty cheese and peppery greens perfectly.
 

2. As a Dessert

Serve warm slices of barbecued watermelon with vanilla ice cream or whipped cream.
 
The contrast of hot and cold makes it feel like a restaurant-quality dessert.
 

3. On Burgers or Tacos

A slice of barbecued watermelon makes a surprising and tasty topping for burgers, tacos, or even grilled chicken.
 
It adds juiciness and a touch of sweetness that pairs well with savory fillings.
 

So, How Do You Barbecue Watermelon?

You barbecue watermelon by grilling thick slices over high heat for a few minutes per side until charred and caramelized.
 
It’s a simple process that turns an ordinary summer fruit into something smoky, sweet, and unforgettable.
 
Whether you serve it savory with salt and lime or sweet with honey and chili, barbecued watermelon deserves a spot at your next cookout.
 
Now that you know how to barbecue watermelon, grab one at the store and give it a try.
 
Your grill is waiting.