Best Scalloped Sweet Potatoes

I grew up with more than one version of sweet potatoes at the holiday table, but this scalloped sweet potato recipe—thinly sliced medallions baked in a buttery brown-sugar-spice glaze and finished with toasted marshmallows and pecans—always disappears first. It’s cozy, slightly caramelized, and easy enough for a weeknight yet pretty enough for a holiday spread. If you’re curious about potato varieties, purple types like Murasaki bring a striking color and slightly firmer texture to the dish: https://savorousrecipe.com/murasaki-sweet-potatoes-the-delicious-superfood-you-need/.

Why you’ll love this dish

This recipe hits the sweet spot between dessert-like sweetness and side-dish comfort. It’s not sticky-sweet like candied yams; instead, the thin slices absorb a light brown-sugar-butter syrup so every bite is tender and flavorful. Make it for Thanksgiving, a cozy winter dinner, or whenever you want a crowd-pleasing, nostalgic side.

“We served this at Thanksgiving and guests kept going back for seconds—crispy marshmallow tops and a silky sweet potato base. Perfect balance.” — home cook review

Reasons to try it:

• Kid-friendly: marshmallows make it fun; spices are warm, not spicy.
• Quick technique: no parboiling—thin slicing speeds cook time.
• Flexible: works with pecans or walnuts, light or dark brown sugar, and can be dressed up or down.

The cooking process explained

Before you start: plan on about 15–20 minutes active prep, 45–50 minutes covered baking, a 1–2 minute broil, and 10–15 minutes rest—around 1.5 hours total. The process is simple:

1. Peel and thinly slice sweet potatoes into medallions (about 1/8" thick).
2. Heat butter, brown sugar, water, and spices to make a glaze.
3. Brush most of the glaze over arranged slices, cover, and bake until tender.
4. Uncover, add remaining glaze, sprinkle nuts and marshmallows, then broil instantly to toast.
   This overview keeps expectations clear and helps you pace the work.

What you’ll need

• 5–6 medium sweet potatoes, peeled and cut into thin medallions (about 1/8" thick). Use a mandoline if you have one—use the hand guard for safety.
• 1/4 cup unsalted butter (use salted if that’s what you have—omit or cut back the added salt)
• 1/4 cup brown sugar (light or dark both work; dark gives a deeper molasses note)
• 1/2 cup water
• 1 tsp ground cinnamon
• 1 tsp ground cloves
• 1 tsp ground nutmeg
• 1/4 tsp salt
• 1/4 cup chopped pecans (or walnuts)
• 1/2 cup mini marshmallows (or more to taste)

Notes and substitutions:

• For a richer sauce, swap 1/4 cup of the water for heavy cream.
• Omit marshmallows for a savory-sweet side and instead sprinkle with panko + butter for crunch.
• If you’re avoiding nuts, substitute toasted pumpkin seeds or leave them off.

Step-by-step instructions

1. Preheat oven to 400°F (204°C). Grease a 9×13 or similarly sized baking dish.
2. Peel sweet potatoes. Slice into thin medallions—aim for about 1/8" thickness so they cook evenly.
3. Arrange the slices in overlapping rows in the dish until full.
4. In a small-to-medium saucepan over medium heat, combine butter, brown sugar, water, cinnamon, cloves, nutmeg, and salt. Stir as the butter melts and the sugar dissolves into a glossy sauce (about 3–5 minutes).
5. Use a pastry brush or spoon to apply roughly 3/4 of the sauce over the arranged sweet potatoes—coat evenly so flavors penetrate.
6. Cover the dish tightly with foil and bake for 45–50 minutes, until a fork slides through the center slices easily.
7. Remove foil. Distribute the remaining sauce over the top. Sprinkle chopped pecans evenly, then scatter mini marshmallows.
8. Switch oven to broil. Place the dish under the broiler for 1–2 minutes to toast marshmallows—watch constantly to prevent burning.
9. Remove, let cool for 10–15 minutes to set the glaze, then serve.

Best ways to enjoy it

Serve slices hot or warm as a centerpiece side. Pairing suggestions:

• Roast turkey, baked ham, or glazed pork loin make classic companions.
• For a contrasting salty bite, serve with sliced cured meats like beef salami; the savory, tangy salami balances the sweetness.
• Garnish with extra toasted pecans and a sprinkle of flaky sea salt for texture and contrast.

Presentation tips:

• Spoon some of the leftover glaze from the baking dish over plated slices for shine.
• For family-style serving, keep marshmallows on top; for a more refined platter, remove marshmallows and finish with toasted nuts and a light drizzle of browned butter.

Storage and reheating tips

• Refrigeration: Cool to room temperature, cover, and refrigerate within 2 hours of baking. Keeps 3–4 days.
• Freezing: Freeze in airtight containers for up to 2 months. Thaw overnight in the fridge before reheating.
• Reheating: Reheat covered in a 350°F oven for 15–25 minutes until warmed through. To refresh marshmallows, add fresh ones and briefly broil for color. Microwaving works for single portions (start 60–90 seconds), but the texture will be softer.
  Food safety: discard leftovers left out more than 2 hours. Reheat to steaming hot (165°F) for safe consumption.

Helpful cooking tips

• Slicing: a mandoline gives uniform 1/8" slices that cook evenly. If slicing by hand, aim for consistent thickness.
• Sauce consistency: the sauce should be glossy but not syrup-thick before baking; it will thicken slightly in the oven.
• Doneness test: a fork should pierce the center slices without resistance. If some edges are tender but center is firm, cover and bake 5–10 more minutes.
• Broiling caution: broilers vary—stay within arm’s reach and broil in short bursts (15–30 seconds at a time) to avoid burning.
• Nut toasting: toast pecans in a dry skillet 3–4 minutes until fragrant for brighter flavor before adding.
• If you prefer less sweetness, reduce the brown sugar to 3 tablespoons and increase spices or add a splash of lemon juice to cut richness.

Creative twists

• Savory scalloped swap: omit marshmallows and brown sugar, use 1 cup milk + 2 tbsp butter + 1/4 cup grated Parmesan, thyme, and a pinch of nutmeg for a savory gratin.
• Maple-bourbon glaze: replace water with 2 tbsp bourbon + 2 tbsp maple syrup for deeper flavor.
• Crunch topping: mix 1/2 cup panko, 2 tbsp melted butter, and 1/4 cup chopped pecans; sprinkle after removing foil and bake uncovered for 10–15 minutes.
• Vegan version: use vegan butter and vegan marshmallows; swap brown sugar for maple syrup if desired.
• Spice variations: add a pinch of cayenne or smoked paprika for a subtle heat that plays well with the sweetness.

Common questions

Q: How long does this take from start to table?
A: Active prep 15–20 minutes. Covered bake 45–50 minutes. Broil 1–2 minutes. Rest 10–15 minutes. Plan about 1 hour 20 minutes total.

Q: Can I make this ahead?
A: Yes. Assemble in the baking dish, cover tightly, and refrigerate up to 24 hours. Add marshmallows right before baking and increase bake time by about 5–10 minutes if baking straight from cold.

Q: Can I use canned or cooked sweet potatoes?
A: Canned sliced sweet potatoes are softer and won’t hold medallion shape or texture; using fresh gives the best texture. If using leftover roasted sweet potatoes, layer and warm with sauce, but reduce baking time.

Q: Are marshmallows necessary?
A: No—marshmallows are traditional and kid-approved, but you can omit them and substitute crunchy panko or a toasted nut topping for a less sweet, more adult-friendly side.

Q: Is this gluten-free?
A: Yes—ingredients listed are gluten-free. If using a crunchy topping or store-bought marshmallows, check labels.

Q: How can I make this less sweet?
A: Cut brown sugar to 3 tbsp, add a splash of apple cider vinegar or a squeeze of orange juice to balance sweetness, or omit marshmallows.

If you want recipe variations or a printable version for your holiday menu, tell me how many people you’re serving and I’ll scale and tweak it accordingly.

Scalloped Sweet Potatoes

Print Recipe Pin Recipe

Prep Time 20 minutes mins

Cook Time 50 minutes mins

Total Time 1 hour hr 30 minutes mins

Course Side Dish

Cuisine American

Servings 8 servings

Calories 200 kcal

Ingredients

  

Sweet Potato Preparation

• 5-6 medium sweet potatoes, peeled and cut into thin medallions Aim for about 1/8" thickness.

Glaze Ingredients

• 1/4 cup unsalted butter Use salted if that's what you have.
• 1/4 cup brown sugar Light or dark both work; dark gives a deeper molasses note.
• 1/2 cup water For a richer sauce, swap with heavy cream.
• 1 tsp ground cinnamon
• 1 tsp ground cloves
• 1 tsp ground nutmeg
• 1/4 tsp salt

Topping Ingredients

• 1/4 cup chopped pecans Or walnuts.
• 1/2 cup mini marshmallows Or more to taste.

Instructions

 

Preparation

• Preheat oven to 400°F (204°C) and grease a 9x13 baking dish.
• Peel sweet potatoes and slice into thin medallions about 1/8" thick.
• Arrange the slices in overlapping rows in the baking dish.

Making the Glaze

• In a saucepan over medium heat, combine butter, brown sugar, water, cinnamon, cloves, nutmeg, and salt. Stir until melted and glossy (3–5 minutes).
• Brush about 3/4 of the glaze over the arranged sweet potatoes and cover tightly with foil.

Baking

• Bake covered for 45–50 minutes until tender.
• Remove foil and distribute the remaining glaze over the top. Sprinkle with chopped pecans and mini marshmallows.
• Switch oven to broil and bake for an additional 1–2 minutes to toast the marshmallows, watching closely.

Serving

• Let cool for 10–15 minutes to set the glaze, then serve.

Notes

Can be made ahead by assembling and refrigerating up to 24 hours. Omit marshmallows for a savory option. For less sweetness, reduce the brown sugar or add lemon juice.

Keyword Comfort Food, Holiday Recipe, Scalloped Potatoes, Sweet Potatoes, Thanksgiving Side