This Crock Pot Candied Yams recipe is the kind of side dish that always gets asked for at holiday gatherings. I first made it a few Thanksgivings ago when I needed something hands-off that would still taste like it came from a loving, careful cook. The sweet potatoes become tender and glossy in a brown sugar and maple glaze, while warm spices and a butter-rich sauce give every bite a velvety finish. The final layer of mini marshmallows adds nostalgia and a light toasted sweetness that contrasts beautifully with the soft yam cubes.

What makes this version special is its simplicity and predictability. With only a few pantry-friendly ingredients—brown sugar, butter, maple syrup, cinnamon, nutmeg and vanilla—you get a complex flavor profile that comforts without being cloying. I love that this can be prepped in 15 minutes and left to meld and caramelize for hours in the slow cooker, freeing oven space for roast or pie. It has become a staple at my table; family members comment every year on how the syrup thickens and clings to the sweet potatoes, and how the browned marshmallow top evokes childhood holiday memories.

Ingredients

• Sweet potatoes: 4 pounds sweet potatoes, peeled and cut into 1/2 inch dice. Choose firm, orange-fleshed yams or sweet potatoes like Beauregard or Garnet for the best natural sweetness and creamy texture.
• Butter: 1/2 cup salted butter. Salted butter adds savory balance to the sugar; if you only have unsalted, add a pinch of sea salt to finish.
• Brown sugar: 1 cup light brown sugar, packed. Light brown sugar offers molasses notes without overpowering the sweet potatoes; pack it in the measuring cup for accurate sweetness.
• Maple syrup: 1/2 cup pure maple syrup. Real maple adds depth and a pleasant, aged sweetness—substituting pancake syrup will work but flavor will be flatter.
• Spices: 2 teaspoons ground cinnamon and 1 pinch ground nutmeg. Cinnamon provides warmth and nutmeg adds subtle aromatic complexity.
• Vanilla: 2 teaspoons vanilla extract. Stirred in off the heat to preserve its fragrance.
• Mini marshmallows: 10 ounce bag mini marshmallows. These melt into a nostalgic, pillowy top; use vegan marshmallows if you need a gelatin-free option.

Instructions

Prepare the potatoes: Peel and dice 4 pounds of sweet potatoes into roughly 1/2 inch pieces so they cook evenly. Place the diced potatoes in a large bowl and set aside. Uniform pieces ensure consistent tenderness after the long slow-cook. Make the glaze: In a small saucepan over medium-low heat, combine 1/2 cup salted butter, 1 cup packed light brown sugar, 1/2 cup maple syrup, 2 teaspoons ground cinnamon, and a pinch of nutmeg. Whisk gently until butter melts and sugar dissolves into a smooth, glossy syrup. Remove from heat and stir in 2 teaspoons vanilla extract to preserve its aroma. Combine and load the slow cooker: Pour the warm glaze over the diced sweet potatoes and toss to coat completely. Spray the body of a 6-quart slow cooker with cooking spray to prevent sticking. Transfer the potatoes and glaze into the slow cooker, spreading into an even layer for consistent cooking. Cook low and monitor: Cook on low for 6 to 8 hours or on high for 4 to 5 hours. If cooking on high, stir every 30 minutes if possible to prevent burning on the edges. Look for potatoes that are fork-tender and for the liquid to have reduced into a thick, syrupy glaze that clings to the pieces. Finish with marshmallows: Once potatoes are tender, add half of the 10 ounce bag of mini marshmallows and fold them in gently so they soften into the glaze. Sprinkle the remaining marshmallows on top to create a puffed, toasty layer. Put the lid back on for a few minutes if you want just-melted tops, or transfer the warm mixture to an ovenproof dish and broil for 1 to 3 minutes to brown the marshmallows—watch closely to avoid burning.

Storage Tips

Store cooled leftovers in an airtight container in the refrigerator for up to four days. For longer storage, spoon into freezer-safe containers and freeze in portion-sized amounts for up to three months. When reheating, thaw overnight in the refrigerator and warm gently in a 325°F oven covered with foil, or reheat in the slow cooker on low until warmed through. If the glaze has separated, stir in a tablespoon of butter or a splash of maple syrup to rejuvenate shine. Freshly toasted marshmallows can be added after reheating for a new crispy top.

Ingredient Substitutions

Substitute vegan butter and vegan marshmallows to make a gelatin-free version, and consider a dark brown sugar for a deeper molasses flavor. If pure maple syrup is not available, use a mild honey or light corn syrup in a pinch, but expect a different flavor profile. If you prefer less sweetness, reduce the brown sugar by 1/4 cup and add an extra 1/4 teaspoon of salt to balance. For a savory note, fold in 1 cup of chopped pecans and 1/4 teaspoon smoked paprika before serving to add crunch and complexity.

Serving Suggestions

Serve these glazed yams alongside roasted turkey, glazed ham, or a hearty vegetarian roast. A crisp green salad dressed with citrus vinaigrette cuts through richness, and roasted Brussels sprouts or green beans with lemon make excellent companions. Garnish with toasted chopped pecans or a sprinkle of flaky sea salt to add texture and contrast. For a casual spread, scoop into a warmed casserole dish and top with extra marshmallows just before serving.

Cultural Background

Candied yams are a beloved staple of American holiday tables, particularly in the South and among communities that celebrate Thanksgiving and Christmas. The dish evolved from West African yam traditions and Southern adaptations where sweet potatoes were often prepared with sugar, spices and fats to create a warming, celebratory side. Over time, marshmallows became a popular topping in mid-20th century America and added a playful, sweet finish that many families now expect on their holiday plates.

Seasonal Adaptations

In colder months, enhance the spice profile with 1/2 teaspoon ground ginger or a pinch of allspice. For autumn-themed gatherings, stir in 1/2 cup of cooked, mashed pumpkin for an extra layer of fall flavor. During summer cookouts, reduce the glaze sweetness and add lemon zest plus a splash of bourbon for a grilled-yam version finished under the broiler to toast the marshmallows. These small changes let the dish feel at home across seasons.

Meal Prep Tips

Dice the sweet potatoes and prepare the glaze a day in advance, store them separately in the refrigerator, and combine in the slow cooker on the day you need them. Alternatively, cook the entire dish a day ahead, then reheat and top with fresh marshmallows or broil briefly to refresh the topping. Use shallow, stackable containers for portioning and freeze individual servings for quick holiday meal additions or for weekly sides throughout the colder months.

Whether you keep this as a holiday showstopper or a weeknight treat, these candied yams deliver comforting sweetness and a little nostalgia. Try the small tweaks suggested above to make it your own and enjoy the warm, sticky goodness with people you love.