Honey Mustard Grilled Sweet Potatoes in Foil

There’s something wonderfully comforting about the way sweet potatoes become caramelized and tender when they’re grilled. Honey Mustard Grilled Sweet Potatoes in Foil is a cozy, approachable dish that feels a little special without demanding hours in the kitchen. In this guide, you’ll learn how to coax maximum flavor from a few pantry staples, all while keeping cleanup simple and the brag-worthy results right at your fingertips. Expect a dish that balances natural sweetness with tangy notes and a light, smoky finish from the grill. It’s the kind of side that can stand on its own with a simple green salad, or pair beautifully with grilled chicken, salmon, or shrimp for a complete meal in one tasty package.

Why You’ll Love This Honey Mustard Grilled Sweet Potatoes in Foil

There's a warmth to this recipe that makes it feel like a kitchen hug. The honey-kissed glaze brings out the potatoes’ natural sweetness, while the mustard adds a friendly sharpness that keeps the dish from tipping into syrupy territory. Grilling in foil keeps the potatoes incredibly juicy and ensures the flavors mingle deeply, even if you’re not a confident grill master. The method is forgiving, making it a great choice for weeknights or relaxed weekend gatherings alike.

What makes this version feel special is the way the glaze’s balance adapts to the heat. On a cool night, the glaze clings a little more, creating a saucy finish. On a hotter grill, the potatoes caramelize gently, leaving you with edges that have a subtle crisp and a heart that stays soft and creamy. And because everything cooks in foil, there’s less worry about sticking, flare-ups, or uneven cooking. You can customize the herb finish with whatever you have on hand, from chives to thyme, to give a personal touch every time you make it.

Ingredients for Honey Mustard Grilled Sweet Potatoes in Foil

• 2 large sweet potatoes — The star of the dish; provides natural sweetness and creamy texture when grilled
• 2 tablespoons olive oil — Helps the seasoning cling and promotes browning
• 2 tablespoons honey — Adds gentle sweetness and helps glaze the potatoes
• 1 tablespoon mustard — Dijon or smooth yellow for tang and depth
• 1 teaspoon apple cider vinegar — Brightens the glaze and balances sweetness
• 1 clove garlic — Gives a warm, savory note
• 1 teaspoon salt — Essential seasoning to bring out flavors
• 1/2 teaspoon black pepper — Adds a subtle kick
• 1 teaspoon fresh lemon juice (optional) — Brightens the overall flavor
• Fresh herbs for garnish (optional) — Chives, parsley, or thyme to finish

Step-by-Step Guide to Making Honey Mustard Grilled Sweet Potatoes in Foil

1. Preheat the grill to medium heat and prepare a large sheet of heavy-duty aluminum foil. This creates a snug pocket for steaming the potatoes while they grill, locking in moisture and flavor.
2. Wash the sweet potatoes thoroughly, then cut them into evenly sized rounds or wedges to ensure uniform cooking. Aim for about 1/2 inch thickness.
3. Whisk together olive oil, honey, mustard, apple cider vinegar, minced garlic, salt, pepper, and lemon juice (if using) until the mixture is smooth and glossy.
4. Toss the potato pieces in the glaze until they’re evenly coated. Prepare your foil packet by laying the coated potatoes on the foil and adding a thin layer of glaze on the foil itself to prevent sticking and to add extra flavor from the bottom up.
5. Fold up the edges of the foil to create a loose, sealed packet. Place the packet on the grill and cook for 15–20 minutes, turning halfway through to ensure even cooking. The potatoes should be tender when pierced with a fork.
6. Carefully open the packet to release steam, then optionally move the potatoes directly over the grill for 1–2 minutes per side to develop a light caramelization. Watch closely to prevent burning.
7. Remove from heat and let rest for 3–5 minutes. Drizzle any remaining glaze from the bottom of the packet over the potatoes, garnish with fresh herbs if desired, and serve warm.

Timing & Preparation Details

• Active prep time: about 15 minutes
• Grilling time: 15–20 minutes, depending on heat and potato size
• Total time: roughly 30–40 minutes
• Tip: If you’re cooking for a crowd, you can double the recipe and make two foil packets side by side on the grill. Keep an eye on flare-ups and adjust the heat as needed.
• When is it ready to enjoy? The potatoes should be tender and juicy, with a light glaze that clings to each piece. They’re best served warm, with a quick sprinkle of herbs for color and aroma.

Nutritional Snapshot

Per serving (about 1/4 of the recipe):

• Calories: 190
• Protein: 3 g
• Carbohydrates: 28 g
• Fat: 6 g
• Fiber: 4 g
• Sugar: 9 g
• Sodium: 210 mg

Frequently Asked Questions

Can I use white potatoes instead of sweet potatoes?

Yes, you can, but the flavor profile will be different. Sweet potatoes bring natural sweetness and a softer texture that pairs beautifully with honey and mustard. If you switch to white potatoes, you may want to adjust the sugar slightly or add a splash of maple syrup for balance.

What if I don’t have a grill?

You can cook these in a hot oven instead. Preheat to 425°F (220°C), arrange the foil packets on a baking sheet, and bake for 25–30 minutes until tender, flipping once. Finish under the broiler for 1–2 minutes per side to get a bit of caramelization.

How can I make this dairy-free?

The recipe already uses a dairy-free approach with olive oil and a light glaze. Just ensure any mustard you use is dairy-free and skip any butter-based additions. If you like extra richness, a splash of coconut yogurt is a modern, dairy-free alternative served on the side.

Honey Mustard Grilled Sweet Potatoes in Foil

A simple, flavor-packed way to enjoy sweet potatoes: caramelized edges, tangy mustard, and a touch of honey, all cooked in foil over the grill for juicy, smoky goodness.

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Prep Time 15 minutes mins

Cook Time 20 minutes mins

Servings 4

Ingredients

  

• 2 large sweet potatoes
• 2 tablespoons olive oil
• 2 tablespoons honey
• 1 tablespoon mustard
• 1 teaspoon apple cider vinegar
• 1 clove garlic
• 1 teaspoon salt
• 1/2 teaspoon black pepper
• 1 teaspoon fresh lemon juice (optional)
• fresh herbs for garnish (optional)

Instructions

 

• Preheat the grill to medium heat and prepare a large sheet of heavy-duty aluminum foil. You’ll make a quiet bed for the potatoes so they cook evenly and stay moist.
• Wash the sweet potatoes well and pat dry. Slice them into even rounds about 1/2 inch thick, or cut into thick wedges depending on your preference. Keeping the pieces roughly the same size ensures uniform cooking.
• In a bowl, whisk together olive oil, honey, mustard, apple cider vinegar, minced garlic, salt, pepper, and lemon juice if using. The mixture should be glossy and slightly thick so it sticks to the potato pieces.
• Toss the potato slices in the glaze until well coated. Lay a sheet of foil on the counter, then spread a light layer of the glaze on the foil. This creates a thin, nonstick surface and adds flavor from the bottom up.
• Arrange the coated potatoes on the foil, overlapping slightly but not crowded. Fold up the sides of the foil to create a loose pan; this acts like a mini steamer and keeps the potatoes juicy.
• Seal the foil packet tightly but leave a small air pocket for steam. Place the packet on the grill and cook for about 15–20 minutes, turning once halfway through, until the potatoes are tender when pierced with a fork.
• Carefully open the foil to release steam. If you like a caramelized finish, move the packet directly over the grill grates for 1–2 minutes per side, watching closely to prevent burning.
• Remove from heat, let rest for 3–5 minutes, then drizzle with any remaining glaze from the bottom of the foil. Garnish with chopped herbs if you like, and serve warm.