Side Dishes
This Sweet Potato Blackstone recipe transforms humble sweet potatoes into smoky, caramelized masterpieces with crispy edges and tender centers—all thanks to the Blackstone’s magic. The key? High heat and careful timing to create that perfect balance between char and sweetness.
I’ve perfected this method over countless summer cookouts, and it never fails to impress. What sets this recipe apart is the versatility of the Blackstone—whether you sear them directly over flames or wrap them in foil for a smoky bake, the results are always restaurant-quality.
The sweet potatoes develop a deep caramelization while staying moist inside, making them irresistible on their own or as a side dish. Pair these with grilled meats, fresh salads, or even as a standalone dish drizzled with honey or a sprinkle of cinnamon.
The Blackstone’s cast iron surface ensures even cooking and that coveted smoky flavor that elevates simple sweet potatoes to something extraordinary. Ready in just 30 minutes, this recipe is perfect for weeknight dinners or weekend BBQs. Let’s get cooking!
Ingredients for sweet potato blackstone
Transform ordinary sweet potatoes into Blackstone masterpieces with these carefully selected ingredients.
| Ingredient | Amount | Notes |
|---|---|---|
| Large Sweet Potatoes 🍠 | 4 whole | Organic preferred, uniform size |
| Extra-Virgin Olive Oil 🫒 | ¼ cup | High-quality, fruity variety |
| Kosher Salt 🧂 | 1 ½ tsp | Diamond Crystal preferred |
| Smoked Paprika 🌶️ | 1 tsp | For authentic smoky flavor |
| Ground Black Pepper 🌶️ | ½ tsp | Freshly ground for best flavor |
| Garlic Cloves 🧄 | 4 cloves | Minced for even distribution |
| Fresh Rosemary 🌿 | ¼ cup | Chopped, organic preferred |
| Honey 🍯 | 1 tbsp | Raw, unprocessed honey |
| Aluminum Foil 📄 | 1 sheet | Heavy-duty for wrapping |
| Wooden Skewers 🪵 | 4 whole | Soaked for 30 minutes |
| Fresh Cilantro 🌿 | ¼ cup | Chopped, for garnish |
| Lime Wedges 🍋 | 2 whole | For serving |
| Avocado Oil 🫒 | 1 tbsp | High smoke point for searing |
The quality of your sweet potatoes is non-negotiable—organic, uniform-sized tubers ensure even cooking and maximum caramelization. Local farmers markets often carry the best varieties, but Whole Foods or Trader Joe's consistently stock reliable options. Look for firm, heavy potatoes with smooth skin—any soft spots or wrinkles indicate age. The Beauregard variety is ideal for its natural sweetness. For the olive oil, invest in a high-quality, extra-virgin variety with a robust fruity flavor—California-based brands like Corto or Colavita deliver consistent results. Freshly ground black pepper and organic rosemary elevate the dish further, so avoid pre-ground spices or dried herb mixes that often contain fillers.
No smoked paprika? Substitute with 1/2 tsp chipotle powder plus 1/2 tsp regular paprika for a similar smoky depth. Short on rosemary? Thyme or sage work equally well, though rosemary's piney aroma is signature here. The honey can be swapped for maple syrup or agave nectar in a 1:1 ratio, though honey's floral notes complement the caramelization beautifully. For the foil wrapping technique, heavy-duty aluminum foil is critical—regular foil may tear under high heat. If you're missing wooden skewers, metal or soaked bamboo skewers work just as effectively. The avocado oil's high smoke point makes it perfect for achieving those coveted charred edges without burning the potatoes.
Prepped sweet potatoes keep for 3-4 days in the fridge when wrapped tightly in foil and stored in an airtight container. For longer storage, wrap individual portions in foil and freeze for up to 3 months. Reheat directly on the Blackstone over medium heat for 3-5 minutes per side to restore that perfect caramelized crust. The garnishes—cilantro and lime—should be added fresh just before serving to preserve their vibrant flavors. If prepping ahead, store the honey, spices, and oils separately from the potatoes to maintain optimal texture and aroma. The foil-wrapped method allows for make-ahead convenience while still delivering restaurant-quality results.
Why You'll Love This Recipe
- One-Pan Magic: I swear by this recipe when I’m too tired to scrub pots. Just halve those sweet potatoes, brush them with olive oil, sprinkle on smoked paprika and salt, and toss them on the Blackstone—no flipping, no fuss. The oil pools into crispy little pockets while the inside stays tender, and honestly? That’s my kind of dinner.
- Smoky Sweetness: Between us, smoked paprika transforms these sweet potatoes into something ridiculously good. The char from the Blackstone adds this deep, caramelized edge that makes every bite taste like a campfire meal—even if you’re cooking on your balcony. (Yes, even on a Tuesday night.)
- Meal Prep MVP: I roast a big batch on Sundays and they last all week. Reheat slices in a skillet or microwave for breakfast hash, or toss cold into salads for texture. The leftovers never go to waste, and my wallet stays happy because sweet potatoes are cheaper than takeout.
- Crispy Without the Effort: No oven required—just heat, oil, and patience. The Blackstone’s flat surface gives you that perfect crust without sticking, and the black pepper adds a little bite that balances the sweetness. It’s the kind of dish that feels fancy but takes less time than ordering delivery.
Step-by-step instructions for perfectly charred sweet potatoes
Master the Blackstone technique for sweet potatoes with deep caramelization and smoky depth.
🔥 Step 1: Preheat and Prepare the Blackstone Surface
Preheat your Blackstone grill to 450°F with the lid closed. I use the high heat setting to create those coveted charred edges that define this technique. While it heats, scrub the surface clean with a stiff brush—any residue will prevent proper searing and create uneven cooking.
Once hot, brush the entire surface with 1 tablespoon avocado oil. The high smoke point ensures it won't break down during cooking. Spread the oil evenly using a paper towel—you want just enough to coat the surface without creating a pool. This creates the perfect nonstick surface while promoting caramelization.
👨🍳 Step 2: Prepare and Season the Sweet Potatoes
While the Blackstone heats, peel the 4 whole large sweet potatoes using a vegetable peeler, leaving the skin on for even cooking. Cut each potato lengthwise into 4 equal wedges, creating 16 total pieces. I aim for 1-inch thick wedges for even cooking—thicker pieces take longer to char.
In a small bowl, combine 1.5 teaspoons kosher salt, 1 teaspoon smoked paprika, and 0.5 teaspoon ground black pepper. Toss the sweet potato wedges in this spice blend until evenly coated. The smoked paprika adds that essential campfire aroma while the salt enhances the natural sweetness as they caramelize.
🍳 Step 3: Sear the Sweet Potatoes in Batches
Arrange the seasoned sweet potato wedges in a single layer on the preheated Blackstone surface, leaving ½-inch gaps between each piece. Close the lid and cook for 8-10 minutes until the cut sides develop deep golden-brown char marks and the edges begin to soften slightly.
I rotate the wedges halfway through cooking to ensure even charring on all sides. Watch carefully—they'll go from pale to deep caramel in just minutes. The key is maintaining that 450°F temperature. If you notice the heat dropping, close the lid and let it recover for 2-3 minutes before continuing.
🥘 Step 4: Create the Rosemary-Honey Glaze
While the first batch cooks, prepare the finishing glaze by combining 0.25 cup chopped fresh rosemary, 1 tablespoon honey, and 0.25 cup extra-virgin olive oil in a small bowl. This mixture will infuse the charred sweet potatoes with aromatic depth and prevent them from drying out.
Once the first batch is charred, transfer it to a clean platter. Brush each piece generously with the rosemary-honey mixture, coating both the charred sides and the cut surfaces. The honey will caramelize slightly from the residual heat, creating a glossy finish that balances the smoky char. Repeat this process with the remaining batches, working in 2-potato batches to maintain even cooking.
⏰ Step 5: Assemble and Serve with Fresh Garnishes
After all potatoes are charred and glazed, thread each piece onto the 4 soaked wooden skewers (2 pieces per skewer). The skewers help maintain the charred edges while making them easier to serve. Let them rest for 5 minutes before serving—this allows the juices to redistribute and the flavors to meld.
Garnish each skewer with 0.25 cup chopped fresh cilantro and serve with 2 lime wedges on the side. The bright acidity of the lime cuts through the richness of the caramelized sweet potatoes, while the cilantro adds a fresh herbal note. For best results, serve immediately while the potatoes are still warm and the glaze remains sticky.
Pro Tips For Making Sweet Potato Blackstone
- CUT POTATOES UNEVENLY: I learned this the hard way—slicing them too thin means they burn before cooking through, while thick slices stay raw inside. Go for ½-inch chunks, some bigger, some smaller; the Blackstone’s uneven heat handles it better than you’d think.
- SALT THE SKIN FIRST: Toss the whole potatoes in oil, then hit them with a generous pinch of salt before cutting. The salt draws out moisture, so they crisp up faster and don’t turn to mush on the stone. (Yes, even if you’re impatient like me.)
- START HOT, THEN LOWER: Crank the Blackstone to max heat for 5 minutes first—this sears the edges and locks in flavor. Then drop the temp to medium-high and let them cook undisturbed. Moving them too soon = steam bath, not crisp.
- USE SMOKED PAPRIKA LAST: Sprinkle the smoked paprika after the potatoes are golden, not at the start. The heat brings out its flavor, and you avoid a bitter, burnt taste. (I skip this when I’m lazy, but the dish is noticeably better when I don’t.)
Flavor customization for this recipe
Smoky-Sweet Variations
Swap the smoked paprika for 1 tsp chipotle powder and ½ tsp cinnamon to create a Mexican-inspired version with deep smoky heat. The cinnamon adds warmth while the chipotle brings authentic BBQ campfire flavor. Brush with ½ cup adobo sauce after charring for extra depth. 🌶️
Spicy Cajun Kick
For a Louisiana-style twist, toss the wedges with 1 tbsp Cajun seasoning (like Tony Chachere's) and ½ tsp cayenne pepper before grilling. Finish with a drizzle of hot honey and crumbled andouille sausage on top. The Blackstone’s high heat intensifies the spices beautifully.
Maple-Bourbon Glaze
Replace the rosemary-honey glaze with a maple-bourbon reduction by simmering ¼ cup maple syrup and 1 tbsp bourbon until slightly thickened. Brush this over the charred potatoes for a Southern-inspired sweetness with a subtle kick. Garnish with pecans for crunch. 🍯
Herb-Infused Olive Oil
Swap the rosemary for thyme and sage in your glaze—simmer ¼ cup olive oil with 2 sprigs fresh thyme and 1 sprig sage for 5 minutes, then strain. The earthy herbs pair perfectly with the caramelized sweetness. Add 1 tsp lemon zest for brightness.
Tropical Twist
Add ½ tsp grated ginger and ½ tsp turmeric to the seasoning blend for a Hawaiian-inspired flavor. Finish with a drizzle of coconut aminos (or soy sauce) and toasted coconut flakes. The Blackstone’s smoky char complements the tropical spices wonderfully.
Cheesy Stuffed Wedges
Hollow out the centers of the wedges slightly before grilling, then stuff with ¼ cup shredded cheddar and 1 tbsp cream cheese before serving. The cheese melts perfectly from the residual heat, creating a gooey, indulgent version. Top with green onions for freshness. 🧀
Nutrition facts
Frequently asked questions
Can I use regular potatoes instead of sweet potatoes?
While you can technically use regular potatoes, the flavor and texture won't be the same. Sweet potatoes have a natural sweetness that caramelizes beautifully on the Blackstone, while regular potatoes tend to dry out and lack that rich, smoky depth. For best results, stick with sweet potatoes—they're worth the effort!
How do I prevent the sweet potatoes from sticking to the Blackstone?
Proper preheating and oiling are key! Always preheat your Blackstone to 450°F for 10-15 minutes with the lid closed, then brush the surface generously with avocado oil before adding the potatoes. The high heat and oil create a nonstick surface while promoting that perfect char. If they still stick, your grill might not be hot enough—let it recover for 2-3 minutes before trying again.
Can I make this recipe without a Blackstone?
You can achieve similar results on a grill, grill pan, or even in the oven. For a grill, preheat to medium-high heat and follow the same searing method. On a grill pan, use medium heat and cook for 12-15 minutes, turning occasionally. For the oven, bake at 425°F for 25-30 minutes on a lined sheet pan. The Blackstone just gives that signature smoky char faster!
What's the best way to reheat leftover sweet potatoes?
Reheat on the Blackstone for the best results! Place the potatoes on the preheated surface (around 350°F) and cover with the lid for 3-5 minutes until warmed through. The residual heat will restore that caramelized crust. For oven reheating, bake at 375°F for 10-12 minutes, covered with foil. Avoid microwaving—they'll lose their texture and char.
Can I make this recipe ahead of time?
Yes, but with a few adjustments. Prep the sweet potatoes by peeling, cutting, and seasoning them up to 24 hours ahead, then store in an airtight container in the fridge. When ready to cook, proceed with the Blackstone method. For the glazed version, it's best served fresh, but you can assemble the skewers up to 4 hours ahead and reheat as directed. The flavors meld beautifully when made ahead!