Grilled Japanese Sweet Potatoes with Maple Butter

There is something truly magical about the Japanese sweet potato, known as Satsumaimo. Unlike its orange-fleshed cousins, this variety boasts a vibrant purple skin and a creamy, yellow interior that tastes remarkably like roasted chestnuts when cooked correctly. When you prepare these on an Arteflame grill, you unlock a depth of flavor that oven-roasting simply cannot replicate. The high heat of the flat-top griddle caramelizes the natural sugars in the skin, creating a delightful crunch, while the radiant heat ensures the inside becomes fluffy and tender. This recipe takes that natural earthiness and elevates it with a decadent maple butter glaze. It is a dish that balances savory smoke with comforting sweetness, making it the perfect side dish for autumn gatherings or a standout feature at your next backyard barbecue. Whether you are a seasoned griller or new to the flat-top experience, this recipe is incredibly forgiving and rewarding.

Ingredients

The Main Event

• 4 medium-sized Japanese sweet potatoes (Satsumaimo), scrubbed clean
• 2 tablespoons olive oil (for coating)
• Sea salt to taste
• Freshly ground black pepper

The Maple Butter Glaze

• 1/2 cup salted butter, softened at room temperature
• 1/4 cup pure maple syrup
• 1/2 teaspoon cinnamon (optional, for warmth)

Instructions

Step 1: Prepare the Potatoes

1. Wash the Japanese sweet potatoes thoroughly to remove any dirt from the skin, as the skin is delicious when grilled.
2. Pat them dry completely with a paper towel. This ensures the oil sticks and the skin crisps up rather than steams.
3. Slice the potatoes lengthwise into wedges or 1/2-inch thick rounds, depending on your preference. Rounds tend to cook faster, while wedges offer a hearty bite.
4. In a large bowl, toss the potato slices with olive oil, sea salt, and black pepper until evenly coated.

Step 2: Fire Up the Arteflame

1. Start your Arteflame grill by building a fire in the center wood pit. Allow it to burn down until you have a bed of hot coals and the griddle top reaches cooking temperature.
2. Aim for a medium-heat zone on the flat cooktop. This is usually found midway between the center grill grate and the outer edge of the griddle.
3. Apply a thin layer of oil to the cooktop surface to season it right before adding the food.

Step 3: Grill to Perfection

1. Place the sweet potato slices directly onto the flat steel griddle. Ensure they are not overlapping so each piece gets a nice sear.
2. Grill for about 5 to 7 minutes on the first side. You are looking for a deep golden-brown crust to form.
3. Flip the potatoes using tongs. Continue grilling for another 5 to 7 minutes on the second side.
4. Test for doneness by piercing the thickest part with a fork; it should slide in easily with no resistance. If they need more time but are getting too dark, move them to the cooler outer edge of the grill to finish softening.

Step 4: Glaze and Serve

1. While the potatoes are finishing, mix the softened butter, maple syrup, and cinnamon in a small heat-safe bowl or cast-iron melting pot placed on the cool edge of the grill.
2. Once the butter mixture is melted and combined, brush it generously over the hot potatoes right on the grill for the last minute of cooking, allowing the sugars to caramelize slightly.
3. Remove the potatoes from the grill and drizzle with any remaining maple butter before serving hot.

Tips

Grilling Japanese sweet potatoes requires a bit of patience to ensure the inside becomes creamy without burning the outside. Utilizing the various heat zones of the Arteflame is crucial here. Start searing near the center to get that appetizing color, then move the wedges to the outer perimeter of the cooktop. This allows them to roast gently, similar to indirect heat in a traditional oven, ensuring the dense flesh cooks through perfectly. Another pro tip is to par-boil whole potatoes for about 10 minutes before slicing and grilling if you are short on time; this cuts the grilling time in half and guarantees a fluffy center. Finally, do not peel these potatoes! The purple skin is packed with nutrients and provides a savory, crispy contrast to the sweet, soft interior once it hits the hot steel griddle.

Variations

While the classic maple butter combination is a crowd-pleaser, the neutral, nutty profile of Japanese sweet potatoes makes them an excellent canvas for various flavor profiles. You can easily pivot from sweet to savory depending on your main course. If you are serving Asian-inspired dishes, a miso glaze provides a deep umami kick that pairs beautifully with the potato's natural sweetness. For those who enjoy a bit of heat, infusing the butter with chili flakes creates a complex sweet-and-spicy experience. Here are a few creative twists to try on your griddle:

• Miso Butter: Mix white miso paste with butter and a dash of soy sauce.
• Honey Sriracha: Swap maple syrup for honey and add a squeeze of sriracha.
• Herb Roasted: Skip the sugar; use rosemary, thyme, and garlic butter instead.
• Dessert Style: Top with toasted pecans and a dollop of whipped cream or marshmallows.
• Zesty Lime: Finish with cilantro lime butter and a sprinkle of smoked paprika.

Best pairings

These grilled Japanese sweet potatoes are robust enough to stand on their own, but they truly shine when paired with savory, smoky proteins. The sweetness of the potato and the maple glaze cuts through rich, fatty meats, making them an ideal companion for pork chops or a well-marbled ribeye steak seared on the center grate of your Arteflame. They also complement roasted poultry, such as cedar plank grilled salmon or lemon-herb chicken, where the potato adds a comforting, starch element to a lighter meal. For a vegetarian feast, serve these alongside grilled portobello mushrooms and a charred kale salad. The autumnal flavors also make this dish a fantastic alternative to candied yams for Thanksgiving or holiday outdoor cooking sessions.

Conclusion

Mastering this Japanese sweet potato recipe on your Arteflame grill is about more than just cooking a side dish; it is about embracing the season and the capabilities of open-fire cooking. The transition of the potato from a raw, hard root into a caramelized, melt-in-your-mouth delicacy highlights the beauty of using a flat-top griddle. The maple butter adds that final touch of indulgence that brings people back for seconds. Whether you are cooking for a weeknight family dinner or hosting a weekend gathering, these potatoes offer a sophisticated yet simple flavor profile that everyone will love. Fire up the grill, pour the maple syrup, and enjoy the sweet, smoky results of your labor.