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    Home » Recipes » Potato

    September 8, 2020 · Updated September 3, 2023

    30 Minute Buttery Grilled Potatoes in Foil

    4.73 from 18 votes
    13 Comments

    · by Amanda Gajdosik

    Jump to Recipe Jump to Video

    This post may contain affiliate links. This blog generates income via ads.

    A foil packed filled with buttery grilled potatoes sits on a white backdrop.

    Grilled in foil packets is my favorite way to cook potatoes! The thinly sliced potatoes — Yukon gold, baby reds or russet potatoes work well — emerge from the foil packet extra buttery and perfectly seasoned after just 30 minutes on the grill. These sliced potatoes are the perfect summer side dish!

    A foil packet filled with grilled potatoes sits on a white and grey speckled backdrop. The potatoes are sprinkled with garlic, onion, and parsley.

    I have been eating these potatoes for over half of my life. That’s how good they are! They're easily one of my favorite simple side dish recipes.

    As with any potato recipe – these bad boys are versatile and customizable. Oh, and, as a bonus, you don’t have to heat up the oven to enjoy these perfectly grilled sliced potatoes!

    A hand holds a thinly sliced Yukon gold potato up close to the camera. In the background is a cutting board and a strainer filled with more potatoes.

    This technique makes enough sliced potatoes to feed your whole family. They are a great dish to serve alongside your other favorite grilled recipes. Pair them with grilled venison backstrap, grilled venison kebabs, or even grilled shrimp cocktail.

    This easy grilling recipe produces potatoes that are so silky and buttery they practically melt-in-your mouth. And in just 30 minutes!

    Ingredients for this recipe

    • Potatoes (my preference is Yukon gold or baby reds, but regular Russet work too!)
    • Butter
    • Olive Oil
    • Salt and Pepper (must haves for every potato recipe)
    • Minced Garlic
    • Diced Onion
    All the ingredients for sliced grilled potatoes are on a white marble back drop.

    Assembling foil packets of potatoes

    1. Slice the potatoes thin. Less than ¼ of an inch. A sharp knife will help with this. If you’re struggling cutting the potatoes whole, slice them in half and place the cut side down to work with a flat surface.
    2. Butter the foil pieces. This will help prevent sticking! Use cold butter and just push the stick across the foil to create a thin square.
    3. Make the first layer of sliced potatoes. Taking the extra time to evenly distribute the potatoes will help them cook evenly all the way around.
    4. Season the potatoes. Generously salt and pepper the potatoes. Add minced garlic, diced onion, and pats of butter, too.
    5. Create the second layer. Right on top of the first layer.
    6. Finish with olive oil. The key! The secret ingredient! A generous drizzle of olive oil not only adds moisture and flavor but helps to prevent the butter from burning on the grill. And thus! Protects the potatoes from burning too.
    Slice the potatoes thin.
    Butter the foil.
    Season the first layer of potatoes.
    Repeat the process on the second layer, finishing with a drizzle of olive oil.

    Prepping the packets ahead of time

    These potato packets can be assembled up to one day in advance, if desired. The potatoes may oxidize a bit if the foil packets aren't good and tight, but I promise they'll be just as delicious!

    How long to grill potatoes in foil?

    Once the potatoes are sealed with a second layer of buttered foil, it's time to get grilling!

    Place the foil packets on a preheated grill with the seams facing up. Cook the potatoes for 15 – 20 minutes over medium-high heat on one side and then another 10 – 15 on the other.

    The packet will puff up and some oil and butter may leak out when the packet is flipped but that’s ok! Just watch the flames.

    A foil packet filled with grilled potatoes sits on a white and grey speckled backdrop. The potatoes are sprinkled with garlic, onion, and parsley.

    To serve the potatoes

    After removing the potatoes from the grill I let them sit for a few minutes until the foil is cool enough to handle. Then I unwrap the foil to reveal buttery, beautiful potatoes. The scent is unreal.

    Just thinking about the butter, garlic, and onion is making my mouth water!

    An overhead shot of a large foil packet filled with sliced potatoes that were grilled with garlic and onions.

    Recipe tips and substitutions:

    • I like Yukon gold potatoes for their sweetness, but baby reds or russet potatoes are also great in this grilled sliced potatoes recipe!

    • I fold each side of the foil packet up onto itself twice to create a safe and sturdy seam.

    • For crispier potatoes, cook them upwards of 20 minutes on the first side and 15 on the second. For really crispy potatoes, cook them 30 minutes on the first side and 20 – 25 on the second.

    • Add in some diced bell pepper to the packet before cooking for even more veggie goodness!

    • To easily move, maneuver, and remove the foil packet from the grill I use two large grilling spatulas so the entirety of the packet is supported. A cookie tray is great for transporting the potatoes to and from the grill.
    A white plate filled with buttery sliced Yukon gold potatoes that were grilled in foil packets. The place is on a white and grey speckled backdrop.

    Here’s to grilling season!

    A white banner with black lettering and stars asking readers to leave a recipe rating or comment.

    Watch the recipe video!

    A foil packed filled with buttery grilled potatoes sits on a white backdrop.
    Print Recipe
    4.73 from 18 votes

    30 Minute Buttery Grilled Potatoes in Foil

    Grilled in foil packets is my favorite way to cook potatoes! The thinly sliced potatoes — Yukon gold or russet potatoes work well — emerge from the foil packet extra buttery and perfectly seasoned after just 30 minutes on the grill.These sliced potatoes are the perfect summer side dish!
    Prep Time10 minutes mins
    Cook Time30 minutes mins
    Total Time40 minutes mins
    Course: Side Dish
    Cuisine: American
    Keyword: Buttery Grilled Potatoes, Grilling, Potato, Side Dish
    Servings: 9 servings
    Calories: 266kcal
    Author: Amanda Gajdosik
    Prevent your screen from going dark

    Equipment

    • Grill
    • Grilling Spatulas
    • Aluminum Foil

    Ingredients

    • 3 pounds Yukon gold potatoes
    • ½ cup butter
    • 1 tablespoon kosher salt
    • Freshly cracked black pepper
    • 2 tablespoon minced garlic
    • ½ cup diced white onion
    • ¼ cup olive oil

    Instructions

    • Scrub the potatoes well to be sure the skin is clean. (If using Russets, peel the potatoes.)
    • Slice potatoes into rounds about ¼ of an inch thick and set aside.
    • Using a cold stick of butter, create a thin layer of butter in the center of two 18x12 inch pieces of foil. The tracings of butter should measure approximately 12x9 inches.
    • Place half of the sliced potatoes in a thin, even layer on top of one of the butter rectangles. Season with half of the salt and a generous sprinkling of freshly cracked black pepper. Top with 1 tablespoon of garlic and ¼ cup of the onion. Place 4 – 6 pats of butter on top of this first layer of butter.
    • Repeat the process of layering and seasoning with the remaining potatoes directly on top of the first layer. Drizzle the entire dish with olive oil.
    • Top with the second piece of foil and fold all the edges in toward the center twice to create a sealed packet.
    • Grill over medium-high heat for 15 – 20 minutes on the first side before flipping and grilling for another 10 – 15 minutes. (Longer for crispier potatoes.) The packet will puff up during the cooking process – this is ok!
    • Remove potatoes from grill and allow foil to cool a few minutes before opening packet. Sprinkle with fresh parsley or chives before serving, if desired.

    Video

    Notes

    • Potato packs can be assembled up to one day in advance and stored in refrigerator until ready to grill.
    • Leftover potatoes can be stored in the fridge for up to five days. (And make a really great breakfast!)

    Nutrition

    Serving: 0.3pounds | Calories: 266kcal | Carbohydrates: 28g | Protein: 3g | Fat: 16g | Saturated Fat: 7g | Cholesterol: 27mg | Sodium: 875mg | Potassium: 657mg | Fiber: 4g | Sugar: 2g | Vitamin A: 315IU | Vitamin C: 31mg | Calcium: 26mg | Iron: 1mg

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    Comments

      4.73 from 18 votes (15 ratings without comment)

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      Did you love the recipe? Let me know! And let others know too by leaving a comment and star rating. Reviews are so useful in helping other people find my site and make my recipes. Your support means the world to me!

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    1. Diane says

      April 01, 2025 at 7:36 pm

      2 questions:
      If making in advance, do the potatoes turn gray?
      Can these be made in the oven?

      Reply
      • Amanda Gajdosik says

        April 03, 2025 at 12:10 am

        Hi Diane,

        This is a recipe for grilled potatoes in foil. That's how I always make them so I can't give you oven instructions - I recommend looking for one specifically tested for oven temp and time!

        And you can always make potatoes in advance and reheat to serve. They won't turn gray!

        Thanks,
        Amanda

        Reply
    2. David k says

      June 02, 2024 at 11:27 pm

      Followed directions,burnt.

      Reply
      • Amanda Gajdosik says

        June 03, 2024 at 4:09 pm

        Hi David,

        If they burned that means your heat was too high. I don't know what kind of grill you have but if you are able to adjust the flames or have a thermometer gauge on the grill I recommend cooking them around 350 degrees as best you can. You can also try moving them over indirect heat for the second half of grilling if you're concerned about burning. In my nearly decade of making these and 20-some years of watching my dad make them I have only ever experienced burnt potatoes when the flames are simply too high/strong and that often comes from trying to rush the process too.

        Best of luck next time!
        Amanda

        Reply
    3. Anna says

      June 17, 2023 at 12:55 am

      5 stars
      I was nervous to make these since the cook time on potatoes is unpredictable. They turned out amazing! Next time I will use heavy duty foil since flipping the foil pouch can be precarious. There were no leftovers!

      Reply
      • Amanda Gajdosik says

        June 19, 2023 at 1:20 pm

        Love that you enjoyed these potatoes, Anna! And yes, heavy duty foil helps with flipping - but the more you do it the better you get at it! 🙂 thanks for leaving a review!

        Reply
    4. Christine Stevens says

      November 05, 2022 at 4:45 pm

      5 stars
      Amazing. Added fresh herbs as well. I will be making this again!!!

      Reply
    5. Charlotte says

      September 24, 2022 at 9:37 pm

      So good! I didn’t change anything the first time and the recipe as is was amazing.. just made it second time but added fresh rosemary , thyme and sage sprigs on top and bottom of packet ( I have a surplus in my garden) equally delicious.. definitely a keeper method thanks!

      Reply
      • Amanda Gajdosik says

        September 26, 2022 at 1:40 pm

        So happy you enjoyed the recipe, Charlotte! LOVE that you added fresh herbs. So yummy! 🙂

        Reply
    6. Cassie says

      July 25, 2022 at 9:51 pm

      Can these be completely prepared the day before and stored in the fridge with all the seasonings?

      Reply
      • Amanda Gajdosik says

        July 27, 2022 at 2:42 pm

        Yes they can! I'll be sure to make a note of that in the recipe, Cassie. What an excellent point!

        Reply
        • Mary says

          September 01, 2023 at 6:08 pm

          5 stars
          Please do state “can be prepared in advance”as I looked through several recipes before finding this question and your answer.

        • Amanda Gajdosik says

          September 03, 2023 at 3:14 pm

          A very good point, Mary! Added that note to the recipe card. Thanks!

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