This is my lazy-girl Earth Day dessert: whole raw unpeeled sweet potatoes tossed straight into the slow cooker with just three everyday pantry items. No peeling, no fuss, and almost no dishes. A few hours later, they collapse into soft, caramel-y goodness that tastes like a cross between a sweet potato pie and a gooey pudding.

Whole sweet potatoes beside a slow cooker on a kitchen counter
Whole sweet potatoes beside a slow cooker on a kitchen counter

I started making this on busy weeknights when I wanted something cozy and a little special without turning on the oven, and now it’s become a fun Earth Day tradition because it celebrates using the whole vegetable with almost zero waste.

Serve the sweet potatoes hot, split open in a shallow bowl, and spoon the buttery brown sugar sauce from the bottom of the slow cooker over the top. Add a dollop of vanilla yogurt or a scoop of ice cream if you want it extra dessert-y, or keep it lighter with a drizzle of milk or cream and a sprinkle of chopped nuts.

This pairs really well with a simple roast chicken or veggie-forward dinner—just get the slow cooker going in the afternoon and dessert is ready when you are. Leftovers are great mashed and spread on toast the next morning.

Slow Cooker Whole Sweet Potato Earth Day Dessert
Servings: 4
Ingredients
4 medium whole raw unpeeled sweet potatoes, scrubbed
3 tablespoons unsalted butter, cut into small pieces
1/3 cup packed brown sugar
1 teaspoon ground cinnamon
Directions
Scrub the whole sweet potatoes well under running water, leaving the skins on. Pat them dry with a clean towel. Do not peel or cut them.
Sweet potatoes being rinsed in a kitchen sink
Sweet potatoes being rinsed in a kitchen sink
Place the whole raw unpeeled sweet potatoes in a single layer on the bottom of the slow cooker. They should fit snugly; it’s okay if they touch but try not to stack them.
Sprinkle the brown sugar evenly over the tops of the sweet potatoes. Scatter the butter pieces over the sugar, then sprinkle the cinnamon over everything.
Brown sugar, butter, and cinnamon layered over sweet potatoes in a slow cooker
Brown sugar, butter, and cinnamon layered over sweet potatoes in a slow cooker
Cover the slow cooker with the lid and cook on LOW for 6 to 7 hours, or on HIGH for 3 to 4 hours, until the sweet potatoes are very tender when pierced with a fork and starting to slump and release juices.
Once cooked, carefully use tongs to gently squeeze each sweet potato to loosen the insides, then split them open lengthwise right in the slow cooker or on serving plates.
Stir the buttery brown sugar and cinnamon mixture in the bottom of the slow cooker to combine with the sweet potato juices, forming a simple sauce.
Cooked sweet potatoes split open with glossy sauce in the slow cooker
Cooked sweet potatoes split open with glossy sauce in the slow cooker
Spoon the warm sauce over the opened sweet potatoes and serve immediately, enjoying the soft flesh and edible skins together for a cozy, Earth Day–friendly dessert.
Variations & Tips
Swap the brown sugar for maple syrup or honey for a different kind of sweetness; just drizzle 1/4 cup over the potatoes before adding the butter and cinnamon.

For a slightly more indulgent version, add a splash (2 to 3 tablespoons) of heavy cream or canned coconut milk to the slow cooker in the last 30 minutes to create a richer sauce. If you like a little texture, sprinkle chopped pecans or walnuts over the sweet potatoes right before serving.

Served sweet potato dessert topped with yogurt and chopped nuts
Served sweet potato dessert topped with yogurt and chopped nuts

To lean into the Earth Day theme, leave the skins on when you eat—most of the fiber and nutrients are there, and they get nice and soft in the slow cooker. You can also meal-prep these: cook a full batch, refrigerate, then reheat individual sweet potatoes in the microwave and top with yogurt, nut butter, or a bit of granola for a fast dessert or sweet breakfast.