Some recipes earn their place at the table because they are simple, dependable, and tied to family memories, and this one does all three. With just a handful of pantry and holiday-staple ingredients, you can put together a cozy side dish that feels right at home for Thanksgiving, Christmas, or any cool-weather supper when you want something sweet, warm, and comforting without a lot of fuss.
This dish is especially good alongside roast turkey, baked ham, pork loin, or even a simple roast chicken dinner. To balance its sweetness, serve it with savory sides like green beans, stuffing, cranberry sauce, or a crisp salad, and if you're setting out a holiday spread, it fits in beautifully next to all the classics.
Slow Cooker 4-Ingredient Sweet Potato Casserole
Servings: 10
Ingredients
2 cans (40 oz each) cut sweet potatoes in syrup, drained
1/2 cup butter, melted
1/2 cup brown sugar
3 cups miniature marshmallows
Directions
1. Lightly coat the inside of a slow cooker crock with a little butter or nonstick spray if desired for easier cleanup.
2. Add the drained sweet potatoes to the slow cooker and mash them lightly with a potato masher or large fork until mostly smooth with a few small chunks left for texture.
3. Pour in the melted butter and add the brown sugar, then stir until the mixture is evenly combined and smooth.
4. Cover and cook on low for 3 to 4 hours or on high for 1 1/2 to 2 hours, until hot all the way through.
5. Sprinkle the miniature marshmallows evenly over the top, cover again, and cook for 10 to 15 minutes more, just until the marshmallows are soft and puffed. If you like a more toasted top, transfer the crock insert to a broiler-safe oven for 1 to 2 minutes if manufacturer instructions allow.
Variations & Tips
For a smoother texture: If your family likes a creamier casserole, mash the sweet potatoes more thoroughly before adding the butter and brown sugar. A hand mixer can be used carefully in a separate bowl before transferring the mixture to the slow cooker.
For less sweetness: You can reduce the brown sugar slightly if your sweet potatoes are packed in a very sweet syrup. Draining them well helps keep the flavor balanced and keeps the casserole from becoming too loose.
For picky eaters: Leave a small section without marshmallows if someone at your table prefers the sweet potato mixture plain. It is an easy way to make everybody happy without extra work.
Make-ahead tip: Mix the sweet potatoes, butter, and brown sugar the night before and refrigerate. The next day, place the mixture in the slow cooker, heat until hot, and add the marshmallows near the end so they stay soft and fluffy.
Serving tip: Keep the slow cooker on warm for holiday meals, but do not leave the marshmallows on heat too long or they may melt down too much. Adding them right before serving gives the prettiest top.