You won’t find any easier dish to prepare than Grilled Sweet Potatoes in Foil. They are a perfectly healthy and delicious side dish for any meal. Make these Grilled Sweet Potato Slices any time you want simplicity, flavor, and all the heat outside instead of in your kitchen.
This post was updated from 2019 to improve our reader’s experience. No changes were made to the recipe.
Grilled Sweet Potatoes in foil can’t be easier and make the perfect side dish for any meal. If you’re not a griller, we will show you how easy they are to bake in the oven too!
These sweet potatoes are good for you and delicious. Oh, and cleanup can’t be any simpler either! Here are some great reasons we love grilling sweet potatoes in foil.
Why We Love Grilling Sweet Potatoes in Foil
- Easy clean-up! Just throw out the foil and you are finished cleaning up the mess.
- They don’t dry out. By grilling sweet potatoes in foil, you are essentially baking them.
- Delicious – By cooking them in foil the olive oil and spices are infused into the sweet potatoes.
- You can tailor the spices to your taste. We love rosemary, thyme, cayenne or just salt and pepper with a drizzle of olive oil.
- Can easily be done in the oven if you don’t have a grill or discover you’ve run out of propane. Or, in our case, knee-deep in snow.
- Convenience – Can be grilled alongside your chicken or burgers so your meal is all done at once. I love hanging out with John while he’s grilling instead of being in the house.
- Grilling sliced sweet potatoes makes them cook faster. An oven-baked whole sweet potato takes 40 to 60 minutes depending on their size. My grilled sweet potato recipe takes twelve minutes on the grill.
- No heating up the house.
How to Grill Sweet Potatoes
- Before you start preparing the potatoes, get your grill going so that it’s nice and hot when your packets are ready to go.
- Prepare your sweet potatoes by washing them and removing any blemishes. You can keep the skin on or remove it with a vegetable peeler.
- Slice the sweet potato in half once lengthwise. Turn each half so that it is cut side down, and slice 1/4 inch slices from the halves. If the potato is large, make two sweet potato packets. A good knife and cutting board is a must!
- Cut foil slices large enough to fan out the slices of half of one sweet potato with room to fold it into a packet. Spray the foil with cooking spray.
- Fan out the sweet potato slices on the foil and drizzle with olive oil, herbs, salt, and pepper. Fold it all up and crease the folds well to prevent leakage of oil.
- Place all of this on your preheated grill for about twelve to fifteen minutes, turning half way through.
Ingredients for the Grilled Sweet Potato Recipe
- Sweet Potatoes. If you have extra-large ones you can split each potato into two foil packets which is what we do.
- Olive Oil.
- Herbs of Choice. We use fresh rosemary and thyme most of the time. Dried herbs will work in a pinch. Other fresh herbs also work well – check out our list of variations!
- Salt and Pepper.
How long to grill sweet potatoes?
Check the potatoes after 10 minutes by opening up the packet. Pierce them with
a fork. If they are getting soft, just seal them up and remove them from the grill.
The heat of the packet will continue to cook them for a short period of time.
If they are still hard, seal them back up and cook them for an additional 3 to 5
Can I bake sweet potato Slices in the oven? Yes!
- Preheat the oven to 375°F.
- Place the sweet potatoes on a foil-lined baking sheet that’s been sprayed with non-stick cooking spray or drizzled with olive oil.
- You can also wrap the sweet potatoes in foil just as you would if you grilled them. We put the foil packets on a baking sheet which makes them easier to remove from the oven and assures our juices don’t drip into the oven if our foil packet leaks.
- Check them for doneness after 10 minutes.
What Goes Well With Sweet Potatoes?
If you are looking for great proteins to serve with our grilled sweet potatoes in foil try one of these main dishes: Cheese Stuffed Meatloaf with Beef & Pork, Pork Chops with Cranberry-Thyme Sauce, Grilled Aussie Lamb Loin Chops Recipe, or Grilled Herb Butter Chicken.
One of the dishes that I always make Sweet Potato Packets with is Turkey Sloppy Joes! It’s a match made in yummy heaven.
Tips to Make Our Grilled Sweet Potato Recipe
- Slice the sweet potatoes evenly so that they will cook evenly and be done at the same time. We recommend 1⁄8 and no larger than 1⁄4 thick.
- If you want a heartier slice of potato, slice them thicker or into wedges. Just note that they will take a bit longer to cook.
- By cooking sweet potato slices in foil, no parboiling is required which is recommended when you put the slices directly on the grill.
- We prefer putting 1/2 of the potato is a foil packet. That’s a serving size in our house, and it makes a manageable sized potato packet for the grill.
- Check the potatoes after 10 minutes by opening up the packet. Pierce them with a fork.
- If they are getting soft, just seal them up and remove them from the grill. The heat of the packet will continue to cook them for a short period of time. You don’t want them too overcook. They’ll become very soft. If that accidently happens, just mash them up. They’ll still be delicious and no one will know the difference.
- We don’t recommend adding ingredients that will add liquid such as canned pineapple which would make the grilled sweet potato soggy. You could do so at the end by opening up the packet and just spooning on a little crushed pineapple for the last couple of minutes.
Variations on Grilled Sweet Potatoes In Foil
- You can use a yam or sweet potato for this recipe.
- Grilling sweet potatoes makes their natural sweetness come out. However, for those that love a candied sweet potato, a drizzle of maple syrup or a sprinkle of brown sugar would be a great choices.
- Any of these herbs and spices work well with sweet potatoes: just a sprinkle of salt and pepper, chili pepper, cilantro, cinnamon, coconut, garlic, ginger, nutmeg, rosemary, thyme, allspice, cinnamon, and clove. Try one or combine a few and see what you love!
- We also add a drizzle of olive oil and a little maple syrup would be delicious.
- Add dried fruit to the packet. If you prefer, you can add fresh or canned fruit as indicated in our “Tips” section.
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Grilled Sweet Potatoes in Foil
- 1 sweet potato
- olive oil
- salt and pepper
- herbs (optional) I use rosemary and thyme
- Wash the potato and remove any blemishes. Keeping the skins on is optional. There is a lot of vitamins in that skin! Slice in half lengthwise. With the cut side down, cut 1/8 inch to 1/4 inch slices. Try to keep them all the same thickness.
- Spray a piece of foil large enough to fan out the sliced potato. Lightly drizzle olive oil over potato slices. Sprinkle with rosemary, thyme, (fresh is best but dry will do), salt, and pepper over the potatoes. Fold the foil to create a packet. You can also split the potato into two packets if the potato is large.
- Place on a preheated grill for 15 minutes or until done, turning over halfway through cooking.
- Preheat the oven to 375°F
- Cover a cookie sheet with foil and spray with non-stick cooking spray or spray the pan directly. Spread out the potato slices on a baking sheet.
- Lightly drizzle olive oil over potato slices. Sprinkle rosemary, thyme, (fresh is best but dry will do), salt, and pepper over the potatoes.
- Bake 12 to 15 minutes, turning the pan half-way through baking. The thicker the potatoes are sliced, and the more potatoes on the sheet determine how long they will take to bake. I set my timer for about 12 minutes as my halfway point. It usually tells me how close they are to being done. This small amount was done in 15 minutes, larger amounts may take twice that.
Are you a sweet potato lover? What is your favorite way to prepare them?