Shucked corn on the cob takes about 10–12 minutes on a medium-high grill, with the ears turned every few minutes for even cooking and light char. This simple recipe coats sweet corn with oil before grilling, then finishes it with butter, salt, and pepper; the hot grates bring out its sweetness while keeping the kernels juicy.
Ingredients
- 4 medium ears fresh sweet corn, husked and silk removed (about 1.2 kg / 2.6 lb whole)
- 1 tablespoon neutral oil, such as canola or avocado oil (15 ml)
- 2 tablespoons unsalted butter, softened or melted (28 g)
- ½ teaspoon fine salt (3 g), or to taste
- ¼ teaspoon freshly ground black pepper (about 0.5 g)
- ½ lemon, cut into wedges, optional (about 30 ml juice)
- 1 tablespoon chopped fresh parsley or cilantro, optional (about 3 g)
Instructions
- Heat the grill and prepare the corn. Set a gas or charcoal grill for medium-high direct heat, about 400–450°F (204–232°C), and close the lid while it heats for about 10 minutes. While the grill warms, pull off the husks and as much silk as you can, then rinse the ears briefly and pat them dry. If using a charcoal grill, arrange the coals so the cooking area has an even layer of heat rather than a tall, concentrated pile.
- Oil the ears. Put the dry corn on a tray and brush all sides with the tablespoon of oil. A thin coating helps prevent sticking and encourages even browning. Do not put the butter on the corn yet: butter can drip onto the fire and its milk solids may scorch before the kernels finish cooking.
- Grill for 10–12 minutes. Set the ears directly over the heat and close the lid. Grill for 3 minutes, turn each ear about a quarter turn, and continue turning every 2–3 minutes. The total time is usually 10–12 minutes, depending on the thickness and freshness of the ears and how hot your grill runs. Keep the lid closed between turns so the heat stays steady.
- Check for doneness. The kernels should look plump and glossy, with scattered golden-brown or lightly charred spots. Press a kernel gently with tongs: it should feel tender, not hard or dry. If the corn is still firm, grill it for another 1–2 minutes, turning as needed. A few dark spots are welcome; if large areas are blackening quickly, move the ears to a cooler part of the grill.
- Season and serve. Transfer the corn to a platter with tongs. Spread the butter over the hot ears, then season with salt and pepper. Add lemon juice and herbs if you like, and serve while warm. The butter melts into the kernels as the ears rest briefly on the platter, so there is no separate resting period to add to the cooking time.
Tips
- Choose a consistent size. Ears that are close in thickness finish at about the same time. If some are much smaller, check them after 8 minutes and move them off the grill as soon as the kernels are tender. Larger, older ears may need the full 12 minutes or a little longer.
- Dry the corn before oiling. Water left on the surface can make the oil slide off and may cause extra steam. Patting the husked ears dry gives the oil a thin, even coating and makes it easier to get light browning.
- Turn with tongs, not a fork. Poking the ears can release kernel juices and makes them harder to handle. Turn each ear a quarter turn at a time so the entire surface gets a chance to brown without one side sitting over the hottest spot too long.
- Adjust the heat rather than rushing. If the corn is darkening before the kernels are tender, shift it to indirect heat and close the lid until done. If your grill has uneven hot spots, rotate the ears between positions as well as turning them. A slightly longer cook is better than charred outsides and undercooked centers.
Serving Suggestions
Serve the ears whole as a cookout side, or cut them in half crosswise for smaller portions. They pair well with grilled vegetables, potato salad, baked beans, burgers, chicken, or fish. For a simple summer meal, put the corn on the platter straight from the grill and let everyone add extra butter, salt, pepper, and lemon at the table.
If serving a group, keep the corn warm in a covered dish for a few minutes while other food finishes. Avoid leaving it covered for a long time, because trapped steam softens the browned surface. You can also cut the kernels from the cob after grilling: stand each cooled-enough ear upright on a board and slice downward with a sharp knife. The kernels make an easy topping for a green salad, grain bowl, or taco filling.
Variations
Grill the corn in its husk: For a softer, more steamed texture and less direct char, pull the husks back without detaching them, remove the silk, and fold the husks back over the ears. Grill over medium heat for about 15–20 minutes, turning every few minutes. The husk protects the kernels, so this method generally takes longer than grilling shucked corn. Let the ears cool enough to handle, peel back the husks, and season with butter. No soaking is necessary when the husks are intact; soaking can add time without being required for this method.
Add a savory cheese topping: After grilling, brush the ears with butter and sprinkle with finely grated Parmesan, black pepper, and a little chopped parsley. The cheese adds a salty, savory finish, so taste before adding extra salt.
Make it smoky and spicy: Mix ½ teaspoon smoked paprika (about 1 g) and a pinch of cayenne (about 0.2 g) into the softened butter, then spread it over the grilled corn. Start with a small amount of cayenne and add more at the table if you want more heat.
Use a dairy-free finish: Replace the butter with 2 tablespoons olive oil (30 ml) or a dairy-free butter alternative (28 g). Olive oil gives the corn a grassy, peppery flavor; a plant-based butter alternative is closer to the familiar buttery finish. Both can be added after grilling to keep them from scorching.
Storage and Reheating
Refrigerate leftover corn within 2 hours of cooking. Keep whole ears in an airtight container or wrap them tightly and refrigerate for 3–4 days. If you have already cut the kernels off, store them in a covered container and use them within the same 3–4-day window. For best flavor and texture, keep the corn plain and add fresh butter or other toppings when you reheat it.
To reheat whole ears, warm them on a covered grill over medium heat, turning occasionally, until hot, or microwave them in a covered microwave-safe dish with a teaspoon of water for 1–2 minutes, checking and adding short intervals as needed. Reheat leftovers to 165°F (74°C). For loose kernels, warm them in a covered skillet with a small splash of water or butter, stirring until hot. Cooked corn can also be frozen in kernels for about 8–12 months for best quality; cool it promptly, package it airtight, and thaw it in the refrigerator before reheating. Freezing may soften the texture, so thawed kernels work especially well in soups, fritters, or casseroles.
Frequently Asked Questions
How long does corn on the cob take on the grill?
Husked corn generally takes 10–12 minutes over medium-high direct heat, around 400–450°F (204–232°C). Turn the ears every 2–3 minutes and start checking at 10 minutes. Very thick ears or a cooler grill may need an extra minute or two.
Should I grill corn with the husk on or off?
Either works, but the result is different. Shucked corn cooks faster and develops more direct browning and char. Corn grilled in its husk is more protected and steams as it cooks, so it tends to be softer and usually takes about 15–20 minutes. Choose the husked method when you want visible grill marks and the quickest cook.
Do I need to boil corn before grilling it?
No. Fresh corn cooks through on the grill without boiling first. Boiling it beforehand can make it softer and may leave the kernels less suited to browning. Put the raw, husked ears straight on the preheated grill and turn them regularly.
How can I tell when grilled corn is done?
Look for plump, glossy kernels with some golden or lightly charred patches, then check that a kernel feels tender when pressed gently with tongs. If the kernels still feel hard, continue grilling for a minute or two. Grill color alone is not a reliable guide: a very hot spot can blacken the outside before the corn is tender.
Can I grill corn without oil?
Yes. The oil is useful for limiting sticking and helping the surface brown, but it is not essential if your grate is clean and well maintained. Grill the dry ears and turn them carefully. You can add butter, oil, or another topping after cooking.
Can I make grilled corn ahead?
It is best straight from the grill, but you can grill it several hours ahead, refrigerate it promptly, and reheat it before serving. For a short delay, keep it covered and warm only briefly; holding it too long traps steam and softens the char. If making it ahead, wait to add butter and fresh herbs until reheating or serving.
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